AIN AT-X80D TWS Full Frequency Moving Iron HIFI In-ear Bluetooth Earphone with Charging Box, Support Wireless Charging & Voice Assistant(Black)

Features: 1. Bluetooth 5.0 chip, approaching zero delay, smooth operation without lag 2. 6mm moving iron sound unit to ensure crisp and clean sound quality 3. Touch operation, support call, music, wake up voice assistant and other functions, easy to use 5. Support master-slave switching 6. Remove the headset from the charging box, the headset will automatically pair and connect 7. Use with the charging box, long-lasting battery life 8. The charging box can be charged wirelessly, which is convenient 9. Ergonomic design, comfortable to wear Product parameters: 1. Bluetooth version: V5. 0 2. Bluetooth protocol: HSP/HFP/A3DP/AVRCP 3. Wireless distance: 10 meters 4. Battery type: polymer lithium battery 5. Headphone charging time: 2 hours 6. Headphone standby time: 240 hours 7. Working time: 20 hours 8. Headphone battery specification: 3.7V/45mAh 9. Charging box battery specifications: 3.7V/300mAh 10. Speaker unit: 6mm diameter moving iron x2 11. Transmission power: Class 2 12. Sensitivity: 103dB+/-3dB 13. Microphone: -42+/-3dB 14. Response frequency: 20HZ-20KHZ At 2mW 15. Working frequency: 2.402-2.480GHz 16. Input parameters of charging compartment: Type-C 5V 1A