Specification:Bluetooth version: V4.1Frequency range: 2.4GHz-2.48GHzFrequency response: 20Hz-20kHzOperation distance: up to 10m (free space)Bluetooth profiles: A2DP， AVRCP， HSP， HFPTalk/music time: about 5 hoursStandby time: up to 180hrsPackage include:1 x BT sports headset1 x USB charging cable3 x Soft ear cap1 x User manual