Specification:
- impedance: 32 OHM
- Bluetooth version: Bluetooth v5.0 EDR
- Use Bluetooth band: 2.4 GHz
- Power level: CLASS II
- 6Output power: 30 mW
- 7Bluetooth distance: 10 meter barrier
- Frequency response: 20-20000Hz
- Operating voltage range: 3.0V-4.2V
- Mic sensitivity: -42dB
- With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
- Powerful noise de-noising circuit (active noise reduction)
- Switch between Chinese and English (boat does not connect Bluetooth state; press the switch 2 times; the sound hear switch successfully)
- Talking time is about 2-3 hours
- Music time over 1.5-2 hours
- Standby time is over 100 hours
- 2 x i7s tws bluetooth headphones (left and right earphones)
- 1 x charging box
- 1 x USB charging cable
- 1 x user manual