Feature:1. The latest BT 5.3 technology enables stable connection, fast transmission speed and low power consumption.2. Auto power on and fast pairing between left and right earbuds once opening the charging case, quick to pair with BT-enabled audio devices.3. True wireless stereo dual-ear design, left and right earphone channels are separated. It can be used solely or in pairs.4. Click the multifuncton button of the left or right earbud for 4 times to switch between game mode and music mode. Low latency delay, play games freely.5. Ergonomic and secure-fit ear hooks keep earbuds in place even during rough workouts, comfortable and stable to wear, suitable for hiking, running, Cycle, climbing, driving, etc.6. Buttons control design effectively avoids miscontact or delay. Easy to control music and calls, and activate voice assistant (only for iOS).7. A 500mAh charging case can charge and store the earbuds, providing a total of 30 hours working time. Digital display screen clearly shows the battery allowance of the charging box and earbuds.8. Built-in Mic on both earbuds with built-in call noise reduction algorithm delivers clear talking sound in stereo mode.Specification: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 500mAh 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 opening 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.Click the multifuncton button of the left or right earbud for 4 times to switch between game mode and music mode. Low latency delay, play games freely.Ergonomic and secure-fit ear hooks keep earbuds in place even during rough workouts, comfortable and stable to wear, suitable for hiking, running, Cycle, climbing, driving, etc.Buttons control design effectively avoids miscontact or delay. Easy to control music and calls, and activate voice assistant (only for iOS).A 500mAh charging case can charge and store the earbuds, providing a total of 30 hours working time. Digital display screen clearly shows the battery allowance of the charging box and earbuds.Built-in Mic on both earbuds with built-in call noise reduction algorithm delivers clear talking sound in stereo mode.Specifications:Brand Name: LenovoModel Number: XT80BT Version: 5.3Transmitting Distance: up to 10m (no obstacle)Drive Diameter: 10mmFrequency Range: 20-20KHzMic Sensitivity: 42dB3dBImpedance: 32SNR: 90dBDistortion Rate: 3%Charging Case Battery Capacity: 3.7V 500mAhEarbuds Battery Capacity (Each): 3.7V 55mAhMusic Play Time: about 6 hours (depends on music volume)Earbuds Charging Time: about 1.5 hourCharging Box Charging Time: about 1.5 hoursColor: BlackEarbud Size (Each): Approx. 2.9*2.8*1.6cm/1.14*1.10*0.63inEarbud Weight (Each): 8g/0.28ozCharging Box Size: Approx. 8.8*6.0*3.5cm/3.46*2.36*1.37inCharging Box Weight: 55g/1.94ozPackage Size: Approx. 13.7*9.0*4.0cm/5.39*3.54*1.18inPackage Weight: 117g/4.12ozPackage List:1 * Pair of Earphones2 * Pairs of Earcaps1 * Charging Case1 * Charging Cable1 * User Manual (English/Chinese)Package List:1 * Pair of Earphones2 * Pairs of Earcaps1 * Charging Case1 * Charging Cable1 * User Manual (English/Chinese)