Overview: BT 5.2 technology brings high-speed data transfer speed, stable performance, and low power consumption. With true wireless stereo technology, you can use the headset solely or used them in pairs. Equipped with a 300mAh charging box to store and charge the earbuds. Built-in Microphone delivers a clearer and more realistic sound. It will bring you a perfect user experience. Features: BT 5.2 technology ensures higher data transfer speed, more stable and fast connection, and lower power consumption. True wireless dual-ear design, left and right earphone channels are separated. It can be used solely (regardless of master and slave) or in pairs. Auto power on and fast pairing between left and right earbuds once opening the charging case lid. Easy and quick to pair with BT-enabled audio devices. Built-in Mic on both earbuds with ENC call noise reduction, effectively suppressing ambient noise, delivers clearer talking sound. Touch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistant. A 300mAh charging case can charge and store the earbuds. 30mAh battery in each earbud ensures 4-5 hours of music time. Specifications: Brand Name: Lenovo Model Number: LP10 BT Version: 5.2 Transmitting Distance: up to 10m (no obstacle) Drive Diameter: 13mm Frequency Range: 20-20KHz Sensitivity: 107dB3dB Impedance: 32 Waterproof Rate: IPX5 Charging Case Battery Capacity: 3.7V 300mAh Earbuds Battery Capacity (Each): 3.7V 30mAh Music Play Time: 4-5 hours (depends on music volume) Charging Time: about 1.5 hours Charging Port: Type-C Color: Black, White (Optional) Package Size: 15*10*5cm/5.90*3.93*1.96in Package Weight: 150g/5.29oz Package List: 1 * Pair of Earbuds 1 * Charging Case 1 * Type-C Charging Cable 1 * User Manual (English/Chinese)