AIN MK-X50B TWS In-ear Bluetooth Earphone with Detachable Charging Box & USB Charging Cable, Supports HD Calls & Master-slave Switching & Power Bank & Automatic Pairing(Black)

Description

Features:
1. Bluetooth 5.0 chip, approaching zero delay, smooth operation without lag
2. 8mm sound unit, showing crisp and clean sound quality
3. One-key operation, you can hang up/answer calls, play/pause music, previous/next song, wake up voice assistant, etc., easy to use
4. Support master-slave switching
5. Remove the headset from the charging box, the headset will automatically pair and connect
6. Use with the charging box, long-lasting battery life
7. The charging box can be taken down and used as a power bank alone; it comes with a hidden USB charging cable, which is convenient for charging
8. Ergonomic in-ear design, mini compact, comfortable to wear

Product parameters:
1. Bluetooth version: V5. 0
2. Bluetooth protocol: A2DP/HSP/AVRCP
3. Wireless distance: 10 meters
4. Battery type: polymer lithium battery
5. Headphone charging time: 2 hours
6. Headphone standby time: 90 hours
7. Talk time: 4 hours
8. Headphone battery capacity: 3.7V/45mAh
9. Battery capacity of the charging box: 3.7V/300mAh
10. Speaker diameter: 8mm
11. Speaker impedance: 32 ohms
12. Rated power: 2mW
13. Sound pressure level: 95dB At 1000 Hz
14. The left and right ear sound difference: +/- 3dB At 1000 Hz
15. Distortion: less than five percent At 1000Hz
16. Frequency range: 20HZ-20KHZ At 2mW
17. Headphone input parameters: 5V 100mA
18. Input parameters of charging compartment: 5V 100mA