生存双管紧急铝口哨与钥匙链

它是超轻的重量，非常容易携带，万一紧急情况下你可以吹它，它的高频率可以从远处听到，可信的质量！

1坚固耐用，采用优质铝合金制成。
2双管和清脆的声音，你可以使用它在任何拯救生命的环境。
3Maximum声强可达118分贝，可以远距离听到
4高频率Diplopore哨子是一个好的户外助手，紧凑，便于携带，无空腔珠设计，水里面也可以使用。多运动，露营，登山，旅行，运行，登山，攀岩，背包
5Ultra-light和便携式（只有11g），可以连接到任何袋子。
6尺寸：2.2 * 0.6英寸
7. 1000pcs per canton，GW：13kg

Survival double Tubes Emergency Aluminum Whistle with Key Chain

it is super light weight,very easy to carry around ,in case of emergency you can blow it ,its high frequency can be heard from distance,trustable quality!

1Durable and strong,made of high quality aluminum alloy.
2Double tubes and crisp sound, you can use it in any life-saving environment.
3Maximum sound intensity of up to 118 decibels, can be heard for far distance
4High frequency Diplopore whistle is a good outdoor helper, compact and easy to carry, cavity free bead design, water inside also can be used. For Multisport , Camping , Mountaineering , Travel , Running , Climbing , Rock Climbing , Backpacking
5Ultra-light and portable ( only 11g), can attach to any bags.
6Size: 2.2*0.6 inch
7. 1000pcs per canton, GW.: 13kg