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耳機
耳機麥克風
麥克風
揚聲器
無線
配件
SD-26b
40mm driver unit
frequency response: 20-20,000 Hz
impedance: 32 ohm
bluetooth version: 5.0
bluetooth range: up to 10 m (33 ft)
battery charge time: 4.2V/1A about 30 min
talk time: 7-8 hours
play time: 7-8 hours