Description: Bluetooth chip: Lanxun 5616 Bluetooth version: 5.1 Earbuds battery capacity: 50mAh Charging compartment battery capacity: 1200mAh Working hours: 12 hours Standby time: 220 hours Operation Mode: Touch Waterproof grade: IPX7 Battery voltage3.7V Input voltage:5V Transmission distance:10m Speaker:20-20khz Bluetooth operating frequency:2.402-2.48Ghz Specifications: Features The light, shadow, sound and color are extraordinary to listen to, and the game audio and video dual mode. Professional-level control of sound effects, upgrade noise reduction without noise, manual calibration, delicate sound effects hidden in the headphones, the sound is three-dimensional and tense, the details are restored more clearly, and the beautiful music is refreshing. Fingerprint touch, enjoy the wonderful sense of music, use the lightweight fingerprint high-sensitivity touch keys to operate multiple functions, more comfortable to wear. 8mm bio-diaphragm, full-drive composite membrane speaker, good audio resolution, no distortion of details, excellent immersive listening experience. Long-lasting battery life, worry-free travel, large-capacity charging compartment, can charge the headset multiple times, using energy-saving 5.2 Bluetooth chip, long-lasting battery life. The details pay attention to ingenuity and refinement, the paint texture earphones, the sensitive touch front high-definition large screen, the real-time power display, and the round charging compartment design, which is comfortable to handle. Pick up the automatic power on, take out the automatic connection, after the new upgraded bluetooth smart chip is paired for the first time, the next time you use it, directly take out the 2 headset, it will automatically turn on and automatically connect to the hands-on root. It is fully compatible and stable and continuously connected, suitable for the connection of most mobile phones. It is compatible with windows, Android, and ios systems. It is equipped with a newly upgraded 5.2 chip, which effectively improves the delay incompatibility problem. The left and right ears are not divided into primary and secondary, and you can listen when you take them out. Both sides are the main headphones, regardless of the main and auxiliary, you can listen to one by picking up one, and picking up a pair is stereo. Play games, listen to voices, feel the live gunfights, upgrade the Bluetooth 5.2 chip, low power consumption, low latency, longer battery life and more power saving. The game has low latency and real-time synchronization of the battlefield. 7-level waterproof, no fear of rain, multi-process design of the earphone body, to achieve life-level waterproof, no fear of rain and sweat soaking, sweating, not afraid of wind and rain. Package Included: 2*M39 TWS Wireless Headset 1*charging case 4*ear caps 1*USB cable 1*manual