Bluetooth 5.3 and fast auto-connect: These wireless earbuds feature advanced Bluetooth 5.3 technology to ensure a more stable connection, lower latency and less power consumption during data transfer. The signal transmitted by Bluetooth will be more stable within 10 meters. After opening the charging case, the wireless earbuds will automatically turn on and connect to the last paired device smoothly. These earbuds will be the perfect companion for commuting, exercising and everyday life. Dual LED display and 1 hour quick charge for excellent battery life: The Wireless Headset Bluetooth has a dual digital power display that shows the remaining power in the left/right Wireless Bluetooth earbud and charging compartment when the case is opened or closed. One charge lasts up to 5 hours and 7 more charges from the charging compartment extend listening time up to 40 hours. Enjoy fast charging with up to 1 hour of playback time in just 10 minutes of charging. High-fidelity stereo sound quality and HD calls: These Bluetooth earbuds feature 13mm graphene composite drivers with crystal clear sound and deep bass resonance for an immersive, high quality music and movie experience. Built-in dual microphones combined with CVC 8.0 noise cancellation to get rid of noise and make your calls clearer than ever before and get rid of ineffective calls. IPX7 waterproof and mini-comfortable design: both the headset and charging case are waterproof, which prevents sweat from soaking into the wireless headset when you exercise and avoiding sweat damage to the parts. The single wireless Bluetooth earbud is only 3.2 grams, possessing ultra-light weight. Perfect ergonomic design, even if you wear it for a long time, you will not feel uncomfortable or fall off. Touch control: Easily answer/hang up/reject calls, music control and activate voice assistant with the capacitive touch-sensing technology built into each earbud.