Color: Black, White, Blue, Red
Battery: 3.7V 1600mAh built-in battery
SNR: above 75db
Speaker: Φ40mm outside magnetic trumpet / 4Ω
Supports TF card, can play Mp3 format files.
Talk hands-free with mobile phone, answer call easily.
3.5 audio output / input, it can also connect with computer, MP3/MP4 / mobile.
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