Overview: BT 5.0 technology brings high-speed data transfer speed, stable performance, and low power consumption. With TWS technology, you can use the headset solely or used them in pairs. Equipped with a 300mAh charging box to charge the earbuds. Built-in Microphone delivers a clearer and more realistic sound. It will bring you a perfect user experience. Features: BT 5.0 technology ensures higher data transfer speed, stable and fast connection, and low power consumption. True wireless dual-ear design, left and right earphone channels are separated. It can be used solely or in pairs. Touch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistant. Built-in Mic on both earbuds with intelligent ENC noise reduction delivers clearer talking sound in stereo mode. Supports SBC+AAC professional audio codec technology, LP2 restores the sense of dynamic, catches every details of sound. A 300mAh charging case can charge and store the earbuds. Supports 20 hours of music playing time in total. Specifications: Brand Name: Lenovo Model Number: LP2 BT Version: 5.0 Transmitting Distance: 8-10m Drive Diameter: 10mm Frequency Range: 20-20KHz Speaker Sensitivity: 96dB Mic Sensitivity: -42dB3dB Impedance: 3215% Charging Case Battery Capacity: 3.7V 300mAh Earbuds Battery Capacity (Each): 3.7V 30mAh Music Play Time: about 3 hours (depends on music volume) Color: Black, White (Optional) Earbud Weight (Each): 3.4g/0.12oz Package Size: 13.8*9.2*3.0cm/5.43*3.62*1.18in Package Weight: 73g/2.57oz Package List: 1 * Pair of Earbuds 1 * Charging Case 1 * Charging Cable 1 * User Manual (English/Chinese)