Feature:
Multi-function MP3 headphones
System speacifications: Active Chip read card/play systerm
Audio mode: compatible with MP3 formats
Frequency range of receiver: 87.5~108MHz
S/N ratio: !#!gt!*! 90dB
THD !#!lt!*! 1%
Frequency response: 20Hz~20KHz
Bluetooth version: version 3.0 + EDR + FM
Power supply: 380mA/h rechargable battery
Continuous working time: more than 5 hours based on the volume at 1/3 level
Charging time: 2-3 hours
Working temperature: 0C-50C
Independent USB sound card drive
Indepent card reader function