Havit S3 Merle Lite In-Ear ENC Call Noise Reduction Wireless Bluetooth Earphone Features: 1. ENC noise reduction technology, dynamic filtering, reducing environmental noise 2. 0.06s low-latency game mode, sound and picture synchronization 3. The left and right earphones have built-in independent chips, which can be used independently and seamlessly switch between left and right 4. Imitation ear arc curve design, fits the ear canal, stable and not easy to fall 5. Intelligent audio decoding technology, using high-resolution audio decoding to restore sound details and adaptively adjust audio quality 6. 10mm ultra-thin diaphragm, high sensitive response, three-frequency equalization, good sound effect 7. Bluetooth 5.3, the transmission rate and stability have been greatly improved 8. Reset button design, one-button reset Product parameters: 1. Material: ABS, electronic components 2. Bluetooth version: 5.3 3. Connection distance: 10 meters 4. Sound unit: 10mm in diameter 5. Frequency response: 20-20KHZ 6. Audio coding: SBC, AAC 7. Call noise reduction technology: ENC 8. Game mode delay: 0.06s 9. Sensitivity: 105-111db 10. Charging port: Type-C 11. Battery capacity: earphone: 30mAh, charging box: 300mAh 12. Music time: about 6 hours 13. Talk time: about 5 hours 14. Charging time: earphone: about 1.5 hours, charging case: about 1.5 hours 15. Product size: earphone: 31 x 16.6 x 18.9mm, charging case: 48.2 x 49.5 x 27mm 16. Product weight: earphones: 2.9 grams each, charging case: 29.5 grams