Model Number: AKB-BSH508G Key Specifications/Special Features: Bluetooth earphonesCSR 8645 V4.1Speaker diameter: Φ10mmImpedance: 32ΩS.P.L: 110dB S.P.L.at 1KHzRated power: 20mWFrequency response: 100Hz-10000HzMic type: capacitiveMicrophone unit: 3.7*2.2Directivity: whole directionSensitivity:S.P.L: -42±3dBImpedance: ≤2.2KΩFrequency response: 30-16,000Hz1.Compatible with all audio equipment with Bluetooth functions, such as PC, iPad, iPod, cellphone, tablet PC, MP3
2.HSP, HFP, A2DP, AVRCP
3.Bluetooth protocol standards: Bluetooth V4.0 supported
4.Receiver distance: 10m/360°
5.Battery: chargeable 3.7V/80mAh lithium-ion battery
6.Charging time: less than 2 hours
7.Successive working time: about 5 hours