$16.99 - $13.99
(as of May 10,2021 07:14:28 UTC – Details)
USB Charging with 18650 lithium battery
The built-in 2000mah battery can be repeatedly charged up to 1000, saving the cost of buying a battery.
High Volume Whistle
3 levels of volume adjustable, Maximum volume provide up to 120-150 dB. Louder than standard whistles, sound fast and spreads far, the whistle sound can be aimed in a specific direction.
Compared with traditional whistle, electronic whistle can avoid mouth contact, high-pitched strong sound generator, one electronic whistle can be used by multiple teachers at the same time.
【High-volume & Easy Operation】This electronic whistle is easy and simple for you to use. Just Open the power,press the button and then it works. it can provide up to 120-150 dB sound power, which is your best choice in this special period.
【USB Charge & Large capacity battery 】2000mah Lithium Batteries are included enables it to create strong and consistent sound, and this whistle can last for 15000 blasts, It is 10 times more durable than ordinary button batteries and USB charging save the cost of buying Expensive battery.
【3 Level Volume Whistle】 Three distinct tone personalized whistle for your selection, you can choose the best sound for your demand. You can use it for any sports activities such as sports games, animal training,outdoor camping. It is an excellent device for referee, coaches, teachers, team leaders, especially for elder people who needs careful attention and safety emergency help.
【Easy to Carry Whistle With Lanyard & Bag】Handhold electronic survival whistle is in mini size 5.5in*0.98in, come with a black carry bag and a long 6.54in whistle lanyard for hang or tie on backpack, sailboats, camp hike gear, life jacket, kayak PFD, belt and shoulder straps for quick and easy use in case of emergency.
【Multi-function & WARRANTY】Electronic whistle has built-in flashlight lighting, 3 loudspeaker adjustment, 3 loudspeaker conversion and other functions.