Features:_x000D_
Acontemporary and sleek design stereo audio system_x000D_
Built-in Li-ion battery,no need extra battery is required _x000D_
Built-in digital amplifier,saving energy_x000D_
With storable 3.5mm jack audio cable_x000D_
Three colors are available_x000D_
Ideal for gifts and promotional items_x000D_
Compatible with all portable audio devices_x000D_
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Technical Parameters:_x000D_
Power output: RMS 2Wx2 THD+N1%_x000D_
Frequency response: 50Hz~20KHz_x000D_
Input voltage: DC 5V_x000D_
Built-in battery: Lithium-ion battery_x000D_
SNR: >90db_x000D_
Response sensitivity: 90db_x000D_
Case material: Pure ABS_x000D_
Dimensions: 106x48x26mm_x000D_
Weight: 0.39lb_x000D_
Color: Purple_x000D_
Mp3 player is not included