Features: 1. Bluetooth 5.4 chip, lower power consumption, more stable signal, low latency and no lag. Master-slave switching technology allows you to connect immediately after powering on. You can use the left and right ears at will, seamless switching, simple and casual, and truly free. 2. ANC active noise reduction technology intelligently detects excess noise from outside and within the ear canal, and emits reverse noise reduction waves to eliminate noise, isolating the hustle and bustle and enjoying exclusive tranquility. Dual-mark ENC noise reduction, combined with the voice plus call noise reduction algorithm, makes the call sound quality clearer. 3. Open the cover and turn on the phone, it will pair automatically, put the earphones into the charging compartment and close the cover to automatically shut down. Supports music playback/pause, switching between previous and next songs, switching between normal, noise reduction, and transparency modes, summoning Sir operation, and binaural calls. Specification: 1. Bluetooth 5.4; Chip: Jieli AC7003 2. Battery capacity: 300mAh for charging case, 35mAh for earphones; 3. Usage time: 7 hours 4. Dimensions: 63x53x28mm; Total weight: 49.5g 5. Supports ANC ENC noise reduction, one-to-two, master-slave
