Detailed Product Description Basic parametersModel: WEP150Bluetooth Version: Bluetooth v1.2Frequency response: 2.4GHz-2.480GHzSensitivity: <-80dBmTransmission range: 10 metersMain PerformanceUse of time: Talk time: 8 hours Standby time: 220 hoursCharging time: 2-5 hoursApplicable models: Samsung: D508, D608, E738, E648Battery Type: Built-in rechargeable lithium-ion batteryWeight: 15 ...