Overview: BT 5.3 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: The latest BT 5.3 technology enables stable connection, fast transmission speed and low power consumption. Auto power on and fast pairing between left and right earbuds once taking out of the charging case, quick to pair with BT-enabled audio devices. True wireless stereo dual-ear design, left and right earphone channels are separated. It can be used solely or in pairs. Long touch the right earbud for 2s to switch between game mode and music mode. Low latency delay, play games freely. Ergonomic and 3.5g lightweight design ensures wearing comfort and stability, suitable for hiking, running, cycling, climbing, driving, etc. Touch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistant (only for iOS). A 300mAh charging case can charge and store the earbuds. 40mAh battery in each earbud offers about 4.5 hours of music time. Built-in Mic on both earbuds with built-in call noise reduction algorithm delivers clear talking sound in stereo mode. Specifications: Brand Name: Lenovo Model Number: XT62 BT Version: 5.3 Transmitting Distance: up to 10m (no obstacle) Drive Diameter: 8mm Frequency Range: 20-20KHz Mic Sensitivity: -35dB3dB Impedance: 16 SNR: 90dB Distortion: 5% Audio Decode: AAC, SBC Charging Case Battery Capacity: 3.7V 300mAh Earbuds Battery Capacity (Each): 3.7V 40mAh Music Play Time: about 4.5 hours (depends on music volume) Earbuds Charging Time: about 1.5 hours Charging Box Charging Time: about 1.5 hours Color: Black, White, Pink, Purple (Optional) Earbud Size (Each): 2.6*2.3*1.6cm/1.02*0.90*0.63in Earbud Weight (Each): 3.5g/0.12oz Charging Box Size: 4.8*4.8*2.7cm/1.89*1.89*1.06in Charging Box Weight: 28g/0.98oz Package Size: 10.5*8.2*3.8cm/4.13*3.22*1.49in Package Weight: 69g/2.43oz Package List: 1 * Pair of Earbuds 1 * Charging Case 2 * Pairs of Earcaps 1 * Charging Cable 1 * User Manual (English/Chinese)