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The one gramme figure on this shelf

YingMengZhiGe twin-hole titanium whistle, 5 cm and 5.6 g stated, two supplied

The only whistle on this shelf that publishes a weight — 5.6 g, next to a 5 cm length — in titanium alloy, with a twin-hole design the maker says gives two distinguishable tones and up to 120 dB.

YingMengZhiGe titanium signal whistle with an integrated carabiner hook

YingMengZhiGe twin-hole titanium whistle, 5 cm and 5.6 g stated, two supplied

The only whistle on this shelf that publishes a weight — 5.6 g, next to a 5 cm length — in titanium alloy, with a twin-hole design the maker says gives two distinguishable tones and up to 120 dB.

Pealess or pea design
Not published on the listing — the maker describes twin-hole technology giving two distinguishable tones, and never mentions a ball
Material
Titanium alloy — stated in the title; the bullets instead call it high-grade titanium of what the maker terms military-grade hardness
Dimensions
5 cm long — stated; no width and no depth are published
Stated weight
5.6 g — stated, and the maker compares it to three paperclips
Published decibel figure
Up to 120 dB — stated
Distance quoted at
Not published on the listing — no measuring distance, method or standard is given for the 120 dB figure
Attachment type
Integrated carabiner hook — stated, for rucksack loops or key rings
Amazon reference
B0FK4JGD94 (same reference on 6 Amazon marketplaces)
EAN
0769016626993
  • The only one of the seven listings in this hub to publish a weight, and it publishes a length alongside it
  • A carabiner hook is built in rather than being a cord that has to be threaded through a hole
  • The title says titanium alloy and the bullets say titanium, and the two are not the same statement

Best for: Anyone who wants the carried weight in grammes before deciding, rather than the word light.

≈ 7 €
Check price on Amazon

Specifications

Pealess or pea design
Not published on the listing — the maker describes twin-hole technology giving two distinguishable tones, and never mentions a ball
Material
Titanium alloy — stated in the title; the bullets instead call it high-grade titanium of what the maker terms military-grade hardness
Dimensions
5 cm long — stated; no width and no depth are published
Stated weight
5.6 g — stated, and the maker compares it to three paperclips
Published decibel figure
Up to 120 dB — stated
Distance quoted at
Not published on the listing — no measuring distance, method or standard is given for the 120 dB figure
Attachment type
Integrated carabiner hook — stated, for rucksack loops or key rings
Amazon reference
B0FK4JGD94 (same reference on 6 Amazon marketplaces)
EAN
0769016626993

What this listing puts on record

Two whistles in titanium alloy, 5 cm long and 5.6 g each, using what the maker calls twin-hole technology to give two distinguishable tones, stated at up to 120 dB, with a fully waterproof internal mechanism and an integrated carabiner hook.

The only gramme figure on this shelf

5.6 g. One listing out of seven publishes a weight and this is it. The maker puts it next to a length — 5 cm — and then illustrates both: smaller than a memory stick, lighter than three paperclips.

Two other listings here publish dimensions without a weight; four publish neither. On a thing whose whole argument is that carrying it costs nothing, a number is worth more than the adjective light, which every listing on this shelf reaches for.

Alloy in the title, titanium in the bullets

The title says titanium alloy. The second bullet says high-grade titanium, of what the maker calls military-grade hardness, resistant to falls and to extreme temperatures, rust-free and hygienic, and usable in salt water, snow or desert conditions.

An alloy and a pure metal are not the same statement, and this listing makes both. Neither is odd on its face — a great deal of what is sold as titanium is alloyed — but the two lines do not agree, and this page writes them both down rather than choosing.

Where the decibel line stops short

Up to 120 dB — stated, from the twin-hole design, with a mouthpiece the maker says projects the tone even when breath is short.

And then nothing. No distance, no method, no standard. Six of the seven listings in this hub print a decibel figure and not one of the six says where it was read from, which makes those six numbers a set of claims rather than a set of measurements.

There is no mention of a ball either way, so the design division this family is chosen on stays unanswered here — the twin holes tell you where the sound leaves, not what is or is not rattling behind them.

Availability

Selling at about 7 € on the German Amazon store when this page was checked.

Catalogued on the American, British, French, Italian and Spanish Amazon stores with nobody selling it: the reference is there, the offer is not.

Every figure in this section is what Keepa returned on the day this page was last updated. Prices and offers change without notice.

Prices quoted in this text were read on 6 September 2026. The live price is at the top of the page.

More signal whistles

  • WANYIG stainless steel signal whistle with a key ring attached

    WANYIG twin-tube stainless steel whistle, no pea, 150 dB stated, two supplied

    The highest published decibel figure of the seven on this shelf, at up to 150 dB, on a stainless steel whistle that states it has no built-in pea and publishes all three of its dimensions.

    Pealess or pea design
    Pealess — stated; the maker writes that there is no built-in pea, and gives hygiene in dust or dirty water as its reason
    Material
    Stainless steel — stated, described as strong and durable
    Dimensions
    5.7 × 1.8 × 0.9 cm — stated
    Stated weight
    Not published on the listing — no gramme figure and no adjective in its place
    Published decibel figure
    Up to 150 dB — stated, from what the maker calls twin tubes
    Distance quoted at
    Not published on the listing — the maker says the sound carries from a long way off, without giving a figure or a method
    Attachment type
    Key ring — stated in the title; the maker also describes it hung from a rucksack, worn, or knotted on
    Amazon reference
    B07RWZ6PSF (same reference on 5 Amazon marketplaces)
    EAN
    0782337026495
    • States that there is no built-in pea, which only one other listing in this hub does in plain words
    • Publishes all three dimensions, where the other two size-publishing listings here give one or two
    • No weight published, and no adjective offered in its place either

    Best for: Someone who wants the pea question settled on the page and the three dimensions known before it goes under a sternum strap.

    ≈ 11 €
    Check price on Amazon
  • ACME Tornado Slimline No. 636 whistle in fluorescent orange on a key ring

    ACME Tornado Slimline No. 636, orange, pealess, three air outlets

    The one listing on this shelf that states outright it has no ball inside, and the one that publishes no decibel figure at all — it gives a frequency, up to 4000 Hz, and leaves the loudness claim as words.

    Pealess or pea design
    Pealess — stated; the maker writes that this model has no ball, unlike a conventional trill whistle
    Material
    Not published on the listing — the body is described as small, thin, light and fluorescent orange, with no polymer or metal named
    Dimensions
    Not published on the listing
    Stated weight
    Not published on the listing — described as particularly light, with no gramme figure
    Published decibel figure
    Not published on the listing — the maker publishes a frequency instead, tones of up to 4000 Hz, and calls the whistle one of the loudest in the world
    Distance quoted at
    Not published on the listing — the maker states a carry still audible at kilometres, which is a claim about range and not a distance attached to a measurement
    Attachment type
    Key ring — stated; the maker describes it fitted to trekking rucksacks and buoyancy aids
    Amazon reference
    B000SE9NMY (same reference on 6 Amazon marketplaces)
    EAN
    0717668126361
    • One of only two listings in this hub that state in plain words whether there is a ball inside, and it states there is none
    • Publishes a frequency, up to 4000 Hz, which no other listing on this shelf gives at all
    • No decibel figure at all, on the one specification the other six listings lead with

    Best for: Someone who wants the pealess question answered on the page rather than inferred, and who is content with a frequency in place of a loudness number.

    ≈ $8 / £5 / 8 €
    Check price on Amazon
  • Bramble ten-pack of signal whistles with cords laid out together

    Bramble ten whistles with ten cords, over 100 dB stated

    Ten whistles and ten cords in one box, stated at over 100 decibels — the lowest published figure on this shelf — with no material, no size and no weight given anywhere on the page.

    Pealess or pea design
    Not published on the listing in those words — the maker states there are no moving parts and nothing to obstruct the whistle, and never uses the word pea
    Material
    Not published on the listing — no polymer, metal or finish is named in the title or the five bullets
    Dimensions
    Not published on the listing
    Stated weight
    Not published on the listing
    Published decibel figure
    Over 100 dB — stated, written as a floor
    Distance quoted at
    Not published on the listing — no measuring distance, method or standard is given
    Attachment type
    One cord per whistle — stated, ten whistles and ten cords in the set
    Amazon reference
    B072BV8TXJ (same reference on 6 Amazon marketplaces)
    EAN
    0714983185134
    • Ten whistles and ten cords in one purchase, where every other listing in this hub sells one or two
    • The maker states the whistles are fully waterproof and can float in seawater
    • No material named at all, which is one of only two listings in this hub to leave that blank

    Best for: Kitting out a group from one box, where the count and the cords matter more than a specification sheet.

    ≈ 10 €
    Check price on Amazon

Others worth keeping in the pack

  • NORDMUT cotton sleeping bag liner with its compression sack

    NORDMUT cotton liner, 220 × 90 cm, 480 g stated

    One of only two liners here that name cotton outright, at a stated 480 g and a 10 × 20 cm pack, with a pillow pocket and no fastening described.

    Shape
    Not published on the listing — neither mummy nor rectangular is named; the title gives 220 × 90 cm and a pillow pocket, and nothing more about the cut
    Dimensions
    220 × 90 cm — stated in the title
    Fabric
    100 per cent natural cotton — stated
    Stated weight
    480 g — stated, twice, in two separate bullets
    Packed size
    10 × 20 cm in the supplied compression sack — stated
    Added warmth the maker claims
    Not published on the listing — the bullets claim breathability, softness and moisture transport, and never mention warmth or degrees
    Closure type
    Not published on the listing — no zip, tie or fastening is described anywhere; only a pillow pocket is
    Washing instructions
    Machine washable — stated as presenting no problem; no temperature is given
    Amazon reference
    B0F7K211RD (same reference on 5 Amazon marketplaces)
    EAN
    8720938434419
    • Names the fibre outright — 100 per cent cotton — which four of the seven liners here never do
    • Publishes a packed size and a compression sack together, so the 10 × 20 cm figure is the real one
    • A stated 480 g, second heaviest of the seven here, which is the price of the cotton

    Best for: Hut and hostel nights where cotton against the skin is worth 480 g and the pack has room for a 10 × 20 cm bundle.

    ≈ £30 / 24 €
    Check price on Amazon
  • CADAC 445 g screw-on gas canister for butane-propane

    CADAC 445 g screw-on butane-propane canister, 890 ml

    A 445 g screw-on canister sold against one named appliance, the Safari Chef HP, without ever printing the thread standard that would let a buyer check it against anything else.

    Valve type
    A screw-on fitting with a safety valve — stated; the title calls it a screw cartridge and a bullet states it screws directly under the CADAC Safari Chef HP. No thread size and no reference to EN 417 appears anywhere
    Net gas weight
    445 g — stated as the capacity, given together with 890 ml
    Stated gas mix
    A butane-propane mixture — stated, with no proportion given for either gas
    Canister diameter
    Not published on the listing
    Canister height
    Not published on the listing — 890 ml is a volume, and no external dimension is given
    Empty weight
    Not published on the listing
    Resealable valve
    Not published on the listing — a safety valve is stated, and what it does when the canister is unscrewed is never described
    Amazon reference
    B00J4M60PY (same reference on 5 Amazon marketplaces)
    EAN
    6001773044516
    • The one canister here sold against a named appliance: it is stated to screw directly under the Safari Chef HP
    • Publishes a mass and a volume together, 445 g and 890 ml
    • No thread standard: neither EN 417 nor a thread size appears, so only the named appliance can be checked against

    Best for: Owners of the appliance the maker names, buying the canister the maker points them at.

    ≈ 13 €
    Check price on Amazon
  • Camplora set of four 227 g butane cartridges with MSF-1a bayonet valves

    Camplora four 227 g butane cartridges with an MSF-1a bayonet valve

    The only cartridge here that prints a gross weight beside its net fill, and it identifies the bayonet fitting three separate ways so that the one thing that decides compatibility cannot be missed.

    Valve type
    MSF-1a bayonet valve meeting EN 417 — stated; the maker gives the alternative designations MSF1a valve and bayonet valve, and adds that the cartridges suit appliances to EN 521 run on a 227 g bayonet valve cartridge
    Net gas weight
    227 g of butane — stated, and labelled by the maker as the net fill weight
    Stated gas mix
    Butane — stated, with no second gas named
    Canister diameter
    Not published on the listing
    Canister height
    Not published on the listing
    Empty weight
    Not published on the listing — a gross weight of 330 g per cartridge is stated beside the 227 g net fill, and the shell on its own is never weighed
    Resealable valve
    Yes — the maker states a self-sealing safety valve that lets the cartridge be taken off while still full, so one cartridge can serve several appliances
    Amazon reference
    B08BCBYYT3 (same reference on 3 Amazon marketplaces)
    EAN
    4255682800165
    • Names the MSF-1a bayonet valve, the EN 417 standard and the EN 521 appliance standard — three identifications where most listings give none
    • Prints 227 g net and 330 g gross together, which nothing else in this hub does
    • The same bullet spells the fitting MSF-1a and MFS-1a

    Best for: Tabletop stoves whose own listing names the MSF-1a bayonet cartridge, restocked four at a time.

    ≈ 14 €
    Check price on Amazon

All signal whistles