Product Specification:​1.Model:M52.Bluetooth specification:V5.13.Bluetooth Profile:A2DP,AVRCP, HFP;HSP4.Working voltage:3.1V~4.2V5.Charging voltage:5V-1A6.capacity of the headset: 50MAH7.capacity of the storage box:2000MAH8.Transmission distance:>10M9.Call time:4-5h10.Play time:4-5h11.Waterprof :IPX712.Charging time of headset:1 h13.Charging time of the Charging box:2h14.Support system:All Bluetooth devices and mobile phones;Products include1 * One pair of Bluetooth headsets1 * Charging box1 * Charging cable1 * User Manual4 * Ear cap

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