Original Lenovo EA120 Simple Semi-In-Ear True Wireless Bluetooth Earphones(Rock White)1. Ergonomic design, comfortable to wear, no ear pressure 2. Adopt Bluetooth V5. 4 solution, zero delay, second response, more stable calls 3. With 200mAh capacity charging case, long lasting battery life up to 24 hours 4. Smart touch, touch to manage playback, faster to use 5. IPX4 grade rain and sweat proof structure design, no fear of sweat and rain Parameters: 1. Headphone battery capacity: 30mAh 2. Charging case battery capacity: 200mAh 3.