1. Bluetooth 5.1 + MP3 function, support stereo music playback, phone calls.
2. Supports all Bluetooth enabled audio devices, such as mobile phones, tablets, laptops, etc.
3. 3.5mm audio jack, provides simple wired connection of multiple devices without bluetooth
4. Allows you to answer or reject calls anytime, anywhere;
5. USB charging, rechargeable battery, convenient and practical;
6. The game time is up to 8~10 hours, the continuous talk time is up to 8 hours, and the standby time is up to 148 hours.
7. Good quality, foldable design, adjustable hinge length, comfortable to wear and easy to carry.
8. Suitable for listening to music, watching movies, chatting online, etc.
9. Insert SD card, you can still enjoy music anytime and anywhere without any bluetooth device.
10. Astronaut shape design colorful earphones, earphones for children's holiday gifts.

Product Specifications:
1. Bluetooth version: V5.1
2. Backward distance: 15m (no interference)
3. Battery capacity: 360 mah
4. Use time: 8H (lights on) - 10H (lights off)
5. Standby time: 200 hours
6. Charging time: 2 hours
7. Speaker: 40mm
8. Impedance: 32Ω
9. Frequency response: 20hz-22khz
packing list:
Headphone X1
Charging cable X1
Chinese and English manual X1