Product Name: Helmet Headset 1. The number of intercoms: 4 people chat; 2. Bluetooth-compatible version: 5.1; 3.FM function: yes; 4. Voice prompt: yes; 5. Adaptable handle: EUC; 6. Charging interface: 3.5mm round hole; 7. Charger specification: DC5V/1A; 8. Working voltage: 3.7V; 9. Battery capacity: 750mAh; 10. Charging time: 2H; 11. Standby time: 150H; 12. Intercom time: 18H; 13. Music time: 24H; 14. Mobile phone connection distance: 10M; 15. Intercom distance: 1500M (distance between 4 units); 16. Waterproof grade: IP65; 17. Working temperature: -10&deg;�__50&deg;C; 18. APP: can be controlled by APP (compatible for iPhone and Android); Packing list: 1 x V4 Plus walkie-talkie host 1 x headset 1 x magic sticker 1 x charging cable 1 x manual 1 x helmet clip 1 x screwdriver Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don&#39;t mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks. <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

1 Set Motorcycle Intercom Bluetooth Wireless Helmet Headset Fm Radio Group Talking Walkie-talkie Black