This smart sound bar for durable and practical use is made of premium material and with unique appearance, perfect sound effect. 4 speakers and 20W standard power. Use BT5.0 transmission technology, high efficiency and stability. It is compatible with your TV, laptop, computer monitor and other devices. There are 3 modes: AUX/wireless/TWS, the o can be input by wireless 5.0/3.5mm LINE IN o cable/TF card/USB (MP3). Features - Color: Black and silver. - Material: Plastic. - Size: 42 x 9 x 8 cm. - Our 20W sound bar has imported o amplifier IC chip with anti-interference circuit design, using V5.0 wireless transmission technology for fast transmission, 4200mAh battery capacity makes it last longer. - Wooden sound cavity with 4 quality speakers design, deepen the sound quality of high/mid/low frequency, better than other 20W sound bars. - The sound bar not only elevates the TV-watching experience, but also streams music, podcasts, and more. Perfect for your home, office, bar, restaurant. - There are many o input ways: wireless 5.0/3.5mm LINE IN o cable/TF card/USB (MP3). You can active this sound bar to have a better surrounded sound quality as you desired. - No need to have a spacious living room to enjoy better o playback This compact sound bar installs unobtrusively in bedrooms and small environments. Specifications Standard Power: 20W Input Voltage: USB 5V, 1A/2A Input Interface: Type C Battery Capacity: 4200mAh Wireless Version: V5.0 Wireless Connection Distance: about 33ft Speaker: Phi;66mm(4pcs) Working Frequency: 200Hz-18KHz S/N ratio: ge;72dB Installation Method: place horizontally Control Mode: buttons on the sound bar Modes: AUX/wireless/TWS o Input Ways: wireless 5.0/3.5mm LINE IN o cable/TF card/USB (MP3) Charging Time: about 4-5h Working Time: about 5-6h