耳机类型：其它 插头类型：其它 耳机输出音源：其它 是否无线耳机：其它 是否提供加工定制:是材质:塑料 名称:BT2FM BluetoothMotorcycleHelmentintercomHeadset500MtoBT2FM1.Built in FM RADIO2.Talking Up to 500m between 2 riders 3.Support Bluetooth A2DP and EDR 4.Pair with mobile phone talking in 10m5.Up to120km working speed6.Safe auto-receiving Cell phone calls7.Talk time: 7 hours8.Standby : 130 hours9.Charge Time: 2.5hours10.Water-resistance