Features:

CSR, Bluetooth 4.0, class 2Bluetooth Profiles: Headset & Handsfree and A2DP/HFP/HSP/AVRCP.Support simultaneously connecting to two mobile phones.Support Various Bluetooth enabled devices, for example mobile phone, PDA, laptops, etc.Multipoint & Voice Prompts Top Quality MicrophoneMusic Streaming with Stereo CableEasy Volume & Music ControlPortable lightweight and sweatproof designThe item defines elegance and functionality Elegant and functional designUniversal device compatibility

Specifications:

Bluetooth version: v4.0, CSR8635Working distance range: 10 metersSupport A2DP/ HFP/ HSP/ AVRCP protocol.Support the battery level display ofiphone and some other cell phones.Frequency: 2.4-2.48GHZTalking time: about 6 hours.Music time: about 5 hoursStandby time: about 175 hoursFrequency Response: 20Hz-20KHzSpeaker Impedance: 16ohmSensitivity(S.P.L): 110dBCharging Interface: Micro USB