This is a portable speaker with for practical and durable use. It is and perfect for using. A built-in rechargeable battery allows it a long time. Besides, with built-in microphone, it allows you to receive calls with hands free. Easy to use with card. It is very convenient and fit for any activities. Features - Color: Black - Material: Plastic and metal - Size: Approx. 40x6x5.5cm - Support card - Version: V3.0+EDR - Working Range: Up to 10 meters (In open air) - Loudspeaker amount: 2 - Frequency Response: 100HZ-18KHZ - Impedances: 4 Ohm - Output power: 5W - Signal-to-Noise: ; 75dB - Battery: 3.7V 1800mAh - Voltage: DC 5V - Play format: WAV,MP3,WMA - Expand storage: card, 32GB (Not included) - Qty of speakers: 2 - sound effect and high definition audio, a good bass stereo allows you to enjoy the wonderful music. - Supports card. Easy to use and play. - Adopts , low consumption for . - , lightweight and durable. Perfect for any activities. - Unique design and technical skill make the sound more brilliant. - Warm Tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement, etc., there could be some slight Package list: 1 x soundbar