Bluetooth speaker MUSIC ANGEL Wireless Portable Stereo Speakers with Enhanced bass Resonator Bluetooth 4.0 Built-in Mic 4000mAh Rechargeable Bat 24 Playing Hours 24 HOURS WIRELESS PLAYBACK- A versatile speaker should be able to connect to devices wirelessly, but it should also be able to stream music wirelessly. This speaker's built-in battery lasts 24 hours on a single charge! UP TO 16W SOUND & SUBWOOFER POWER-The Mini Sound bar packs with a subwoofer and dual passive radiators. This makes for big booming base and big sound (120Hz  18kHz) in a small, sleek, portable wireless speaker. PORTABLE POWER BANK- Charge your device on the go. The built in power banks lets you charge your phone, tablet, or any other USB powered device to keep the music going. BLUETOOTH, AUX, USB& SD/TF CARD- This portable speaker connects with devices via AUX input, USB port, SD/TF card and wirelessly via Bluetooth. With this combination, you can stream your music however you want, for any occasion. FOR ALL YOUR DEVICES- Enjoy movies and games from your laptop, tablet, or smartphone loud and clear.