Thinkplus GM1B Wireless Earbuds BT5.3 Earphone High-Clear Voice 20H Long Endurance Low Latency Fast Charging Suitable for All Ear Types Compatible with Android, iOS or Windows for Computer and Network Users This BT earbuds, a clear voice, a full directional microphone with intelligent noise reduction technology, ergonomic design, gamers joint tuning. Features: Clear Voice Communication: Even in complex environments, the all-directional microphone and intelligent noise reduction technology ensure clear and smooth calls and voice interactions. Ergonomic Design: Designed for comfort, it allows you to win and say goodbye to stress easily. Gamers Joint Tuning: In collaboration with esports enthusiasts, it enhances low-frequency response and flexibly reduces mid-high frequency, bringing an immersive reality to the game. Dual Beamforming Microphone: Accurately collects human voice and precisely locks the voice source with algorithms, maintaining clear dialogue contact even in noisy environments. Large 10mm Sound Unit: Combined with a bio-carbon fiber composite diaphragm, it enhances the dynamic range of sound quality presentation, ensuring rich listening scenarios such as games, rock music, and large-scale symphony concerts. Custom BT 5.3: Faster, more stable, and lower energy consumption. The upgraded BT 5.3 chip has strong anti-interference and high stable connection characteristics for free listening. Long Battery Life: Paired with a charging box, it can last up to 20 hours. The comprehensive power management optimization and the charging box with flash charging provide you with a powerful power reserve. Specification: Color: Black BT version:5.3 Wearing style: half in-ear design Headset battery capacity:30mAh Charging compartment battery: 300mAh Charging time of charging compartment: about 2 hours Speaker unit:10mm BT transmission distance: about 10M Usage time: about 5 hours Package size: 140*89*36mm Package weight: 100g Package list: 1* Earbuds 1* Charging cable 1* User manual