Bluetooth 4.2 +EDRMic sensitivity: 42dBWireless frequency: 2.4GHzBattery: 65mAhTransmission distance: 12 mPlay time: 4-5 hoursCharge time: 1-2 hoursStandby time: 60 hoursc
Flexible, lightweight, comfortable fit and durable design. Best choice when you do sports. Adopt true wireless technology, enjoy your wireless sports. Tested for durability, charging, and functionality. Battery life 60-120 minutes.