Original Lenovo EA210 Simple In-Ear True Wireless Bluetooth Earphones(Black)1. Ergonomic design, light and compact, comfortable to wear, no ear pressure 2. Adopts Bluetooth V5. 3 solution, low latency, fast connection, more stable 3. Built in large capacity lithium battery, with charging case, long lasting battery life 4. Smart touch function, touch to manage playback, faster to use 5. Compatible with most mobile phones, tablets, computers and other devices with Bluetooth function Parameters: 1. Headphone battery capacity: