Flexible button Version 2.0 class 2 Range: up to 10 meters SPECIFICATIONS: Operation range: Up to 10 metersBluetooth version: V2.1+EDR Supports Bluetooth Advanced Audio Distribution Profile (A2DP), AVRCPOut put Power,2Wx2ch Music Operation,,Play, Pause, Stop, Forward and Backward Supports Profile, Headset and Hands-free (A2DP), AVRCPSupport extermal 3.5mm Cable audio inPlay time:3 hours,Standby ...