Electronic Whistle Rechargeable Outdoor Training Traffic Command 3 Tone High-decibel Safety yellow_Rechargeable

Description

Material: high- ABS material, comfortable grip, durable USB charging, cycle more durable: no need to replace the battery, USB charging makes charging convenient, charging in the red light will light up green light after charging Super capacity battery: long life 1200mAh large capacity battery, ultra-long life, saving energy, each charge only takes 3-4 hours by using 100 times a day each time 3 seconds of use frequency charge a charge available for nearly 40 days