Built-in Wireless Mic (handsfree)
Support MicroSD card (upto 64GB)
USB Sound Card
Line-in
Working Light
Play Time: 4 -8 hours

Specification:
Bluetooth Distance: 10M
RMS: 3W
Impendence: 2.6Ohms
Frequency Range: 40Hz - 15KHz
Distortion: < 0.5%
SNR: >= 85db
Battery: 3.7V/500mAh
Working Temperature: -10 degree ~ +50 degree
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