ANC PRO Touch 5.0TWS Master-Slave Switch Wireless Bluetooth Headphones Intelligent Noise Cancellation (Black)

Details:
1. Bluetooth version: Bluetooth V5.1
2. Bluetooth protocol support: AVRCP V1.6.A2DP V1.3.HFP V1.7 Simultaneous LE and BR/EDR
3. Bluetooth operating frequency: 2.402GHz-2.480GHz
4. Reception sensitivity: -85dBm
5. Bluetooth effective distance: less than 10 meters
6. Speaker power: 3 mW rating
7. Headphone amplifier type: built-in chip
8. Audio signal-to-noise ratio: greater than 90 dB
9. Frequency response: 50Hz ～ 20KHz
10. Battery box: 3.7V 400mAh lithium battery
11. Music time: about 4 hours (80% of the volume)
12. Talk time: around 4 o'clock (80% volume)
13. Charging time: about 1.5 hours

characteristics:
1. Audio and video synchronization wireless freedom dual channel connection
2. Lightweight and portable semi-in-ear design, comfortable to wear
3. Binaural HD call active noise reduction ANC intelligent noise filtering
4. Light touch sensitive built-in capacitive sensor element
5. With a large-capacity charging compartment, you can continuously charge the headset
6. LED digital power display magnetic charging in the charging compartment automatic shutdown when full

Note:
1. The product should be in a dry and ventilated room, avoid contact with corrosive substances, and keep away from fire and heat sources.
2. The product is charged once every 3 months during storage.