IP3638W Features Bluetooth wireless speaker giving you unlimited music fun Mobile phone calls and redial function Can directly play music from an external TF card FM radio function USB audio card function Built-in rechargeable lithium battery General Specs Brand & Model DOGO DG-168 Bluetooth v2.1+EDR Color White Operating Range 10 meters Battery 600mAh polymer lithium battery Output Power 3W Signal/Noise Ratio ≥80 dB Speaker External Diameter 52 mm Resistance 4 ohms Power Supply Input AC 5-5.5v 1000mA  Dimensions 68 x 68 x 60 mm Package Details Weight: 225.77 g Size: 7.5*7.5*9.5 cm Package Includes * DOGO DG-168 Wireless Bluetooth Speaker with Hands-free Call， Card Reader & FM Radio

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