1. First automatic pairing, 2.Bluetooth 5.0 touch control
3. Earphone magnetic charging,
4. Double ears can make phone calls, both ears can hear sound.
5. With high quality speaker,deep stereo bass sound quality.
6. Powerful noise de-noising circuit (active noise reduction)
7. Remind call number, the last one call back
8. Compatible with almost all bluetooth device (mobile phone,pc,notebook,tablet etc.)
9.Golden size 1:1 specification: 1. Drive: 15mm 2. Impedance: 40 ohms 3. Bluetooth version: bluetooth v5.0 edr 5. Power level: level ii 6. Output power: 50 mw 7. Bluetooth distance: 10 m barrier 8. Frequency response: 20hz 20000 9. Working voltage range: 3.0 v-4.2 v 10. Microphone sensitivity: -42db 11. With a2dp / avrcp high quality stereo audio transmission and remote control protocol 12. Powerful noise cancellation circuit (active noise reduction) 13. Talk time is about 2.5-3.5 hours (lower the voice you can get a longer time) 14. Music time is about 2.5-3.5 hours