Product details of M27 TWS Wireless Earphones Bluetooth5.3 Stereo Headphones Sport Waterproof Earbuds Headset Charging Box With Mic

• Product Specification:
• 1.Bluetooth specification:V5.3
• 2.Bluetooth Profile:A2DP,AVRCP,HFP, HSP
• 3.Working voltage:3.1V~4.2V
• 4.Charging voltage:5V-1A
• 5.Speaker specification：8mm*2
• 6.Frequency response:20Hz~20kHz
• 7.lmpedance:32Ω
• 8.Battery capacity of the headset: 50MAH
• 9.Battery capacity of the storage box:2000MAH
• 10.Transmission distance:>10-20M
• 11.Call Play time:About 4-6 h
• 12.Charging time of headset:1.5h
• 13.Charging time of the Charging box:2h