Parameters:
1. Bluetooth version: 5.0
2. Transmission distance: about 10m
3. Listening to music time: about 6-8H or so
4. Charging time: about 2H
5. Standby time: about 50 days
6. Signal-to-noise ratio: greater than or equal to 85dB
7. Working voltage: 3.7V
8. Frequency response: 20Hz-20KHz
9. Battery capacity: 4400mAh
10. Speaker: 4 Ohm 10W x 1
11. Distortion: less than 1%
12. Function: Bluetooth / TF card / U disk AUX / TWS interconnection / payment broadcast
13. Dimensions: 116x95x95mm
14. Weight: 505g

Features:
1. Adopt 57mm large speaker and large bass diaphragm design to create stereo surround sound and bring you a different sound quality experience.
2. With a built-in 4400mAh battery, it can last for 24 hours after being fully charged, with low energy consumption and stable performance.
3. Nylon+polyter material music net cover package design, no fear of rainy days.
4. Built-in sensitive noise-canceling microphone, smart and clear calls without stuttering.
5. Lanyard design, can be put on backpack, handbag or bicycle, easy to use.

Parts List:
- Bluetooth speaker x 1
- Charging cable x 1
- Lanyard x 1
- User Manual x 1
- Box x 1