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1)Loudspeaker output: 2W(1kHz, THD10%)
2)Sensitivity: ≥ 65dB
3)Loudspeaker Impedance: 4Ω ± 0.5Ω Diameter: (36/4Ω /2W)
4)Lithium battery capacity: 200 mAh
5)Lithium battery: 3.7V~4.2V+0.05V
6)Frequency Response: 200Hz__20kHz
7)Charging time: 1 hours
8)Charging way: Computer, 5V Adaptor
9)Available color: Yellow
10)Compatible with mobile phone, MP3, MP4, iPod, PDA. etc

Accessories:

1)PC USB Power Supply Cable
2)3.5mm Stereo connect Cable

Features

1. Ideal to use at office, home, camping...etc. Pocket size easy to carry out.
2. Used for, MP3/MP4 player, Laptop, CD player, iPod/iPhone, Nano, USB/TF and so on.

Power supply:
Lithium battery-powered, computer USB power supply, DC power supply.