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wireless sd card headphone
Specification:
Speaker dimension:Φ40mm
Impedence:32Ω
Sensitiviy :108dB S.P.L at 1KHz Frequency
Response:20Hz~20,000Hz
Rated power:20mW Rated
capability:40mW
Distortion: <0.1%
Audio format and source
support: High-quality MP3 music format from micro SD card Sustainable
playing time: 8 hours
wireless sd card headphone in wooden materials