Bluetooth Chipset IC:JX6973D4

• Bluetooth Version: 5.4

• Earbuds Battery Capacity: 3.7V/2*40mAh

• Charging Box Volume: 400mAh

• Speaker: Ф13mm  

• Playing time: about 7H (50% Volume)

• Battery life of Charging Box: 4 times                             

• Waterproof Level: IPX4

• Charging Port: Type-C