About this item HIFI Clear SoundBluetooth Speaker with high performance loudspeaker and enhanced bass diaphragm to provide louder clear sound and powerful bass. 16H-24H Long PlaytimeBuilt-in 1500 mAh rechargeable battery powers up to 16-24 hours of playtime. A full charge allows you to enjoy morning music for a week or from dawn to dusk during a picnic or outdoor travel. Multiple Playback ModesBluetooth 5.0 technology supports most devices, such as iPhone, Samsung, and Android cellphones. Also supports USB flash drive and micro SD card (up to 32GB) playback. Support Hands-Free CallBuilt-in high-quality microphone allows you to pair the speaker with your phone via Bluetooth, enabling you to answer calls through the wireless speaker for a louder sound. Best Gift ChoiceThis portable speaker is an affordable gift for you or friends to enjoy favorite songs at home or outdoors. Dimensions: 1.7'D x 6'W x 2.25'H