•Wireless: V5.3Support :L2CAP/A2DP/AVCTP can receive AUDIO signal and control the AUDIO deviceSupport HSP/HFP(Handsfree profile) with HANDSFREE function. •Working distance: 10M•SNR: ≥90db.•Battery: 3.7V about 500mah •Normal volume playing time: about 2 hours •Speaker driver: Φ52mm*1...