I9S TWS Wireless Earphone Portable Bluetooth Headset Invisible Earbud for IPhone X 8 7 Plus For Xiaomi Mobile Android Phones

Description: 1. listening to the song correct, support songs and then call, 2.For iPhone power display, you can always watch the headset power situation, do not worry about the headset no electricity to make your life worry; 3. One to two connections, can be connected to two mobile phones; 4. Bluetooth headset every time connected to the phone after the shutdown, and then open the Bluetooth headset will automatically connect back to the phone, but also more convenient; 5. Intelligent compatibility: support all with Bluetooth mobile phone, tablet, notebook, singing it, QQ music, movies, etc., all the mobile phone; 1. Drive: 15mm 2. Impedance: 32 OHM 3. Bluetooth version: Bluetooth v4.1 + EDR 4. Bluetooth use band: 2.4GHz 5. Power level: CLASS II 6. Output power: 30mW 7. Bluetooth distance: 10 meters barrier 8. Frequency response: 20-20000Hz 9. Mitou sensitivity: 120 ± 5dB 10. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol 11. Powerful noise de-noising circuit (active noise reduction) 12. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully) 13. Charging time about 1 hour (power indicator charging: red light, full power: red light off (blue light).) 14. Talk time is about 4-5 hours(with charger box) 15: Talk time is about 1.2 hours (USE ALONE): 19. music time about 2-3 hours(with charger box) 16. music time about 1 hours(USE ALONE) 17. Standby time is about 100 hours 18. The charging time is about 60 minutes 19. Charging power: DC5V power supply [round hole interface] (computer USB port, mobile phone charger, car charger) Notes: this is the high quality i9S TWS, and stereo wireless bluetooth earphone, with good sound. now all the product is bluetooth 5.0, double ear have voice when calling. There have many i9s tws earphone in the Officematics and different price, why some product is more cheaper? The following is the difference between our product and other product.