1. Bluetooth version: 5.1
2. Sensitivity: 95dB
3. Frequency: 20Hz-20KHz
4. Battery capacity: 280mAh
5. Charging input: 5V 1A
6. Moving coil: 10mm
7. Support TF card: 128M-32GB(not included)
8. Weight: about 30g

Features:
1. Liquid silicone is used for the halter body, with anodized metal shell, highlighting the quality and design sense
2. Bluetooth connection, memory card can also be inserted, you can listen to songs without your hands
3. The graphene diaphragm earphone can make the sound heard more smoothly and clearly
4. Low-power Bluetooth 5.1 chip, simple and fast connection, stable signal
5. Intelligent noise reduction, restore high-definition vocal calls
6. Multi-party smart compatibility, support most Bluetooth devices
7. The earphone is magnetically absorbed, convenient design, close to the automatic adsorption, hang in front of the neck when not in use, do not need to be wrapped in a bag, and will not shake everywhere
8. Smooth skin-friendly silicone material, memorizes the arc, automatically rebounds to return to its original shape, adjusts the arc at any time, and makes it more comfortable and natural to wear
9. Memory link function, connect immediately after booting
10. Humanized wire control design, simple and convenient operation