Product parameters:
Bluetooth version: 5.0
Battery capacity: 255mah
Use time: 24-30 hours
Impedance: 20 ohms
Transmission distance: 10M
Frequency range: 20HZ -20KHZ
Music format: MP3, WAV
Supported protocols: A2DP, HFP, HSP, AVRCP
Version difference:
Bluetooth version: can connect to bluetooth devices such as mobile phones through bluetooth
with card version(not included TF card ): can connect to bluetooth devices such as mobile phones, MP3 function, radio function
