Lenovo XT90 Bluetooth 5.0 Sports Headphones IPX5 Waterproof

Lenovo XT90 Wireless Earphone Bluetooth 5.0 Sport Headphones Touch Button IPX5 Waterproof Headset with 300mAh Charging Box
Specifications:
1.Transmission distance: ≥10M 2.Battery capacity: 35mAh 3.Use time: about 3 hours (headphone) 4.Charging time: about 1.5 hours (headphone) 5.Input specifications: DC 5V=35mA
Specifications of the charging box:
1.battery capacity: 300mAh 2.Charging time: about 1.5 hours 3.Charging parameters: DC 5V=300mA
packing list:
1.a pair of headphones 2.a USB cable 3.a charging case 4.3 pairs of ear cups (SML) 5.a user manual