Chipset:  AB5376A

* TWS & Bluetooth V5.0 φ6MM speaker

* Working Frequency: 2.4GHZ, Class 2

* Talk/Music Time: about 3.5 hours

* Operating Range: 10-15 meters

* Earbuds Battery: 30mah

* Charging time for earbuds: about 1 hour

* Magnetic Charging Box Battery: 350mah, for earbuds charge 3-4 times

*Charging Box Input Voltage: DV 5V 0.5A

*Bluetooth Profiles Supported: HSP, HFP, A2DP,AVRCP