Wireless music playback for all Bluetooth-compatible devices Long-lasting battery with 3 hours of music playback Music control buttons for play/pause, previous/next and volume up/down USB port, Micro-SD card slot for MP3 playback 3.5 mm audio port for wired use FM radio mode supported Built-in LED flashlight Built-in handle to carry your Sound Science Bluetooth® Speaker wherever you want Sound Science Bluetooth® speaker for wireless music playback from Bluetooth-compatible devices. Loudspeakers Driver diameter 4 cm Magnet type Neodymium Number of speakers 1 Audio Frequency range 150 - 18000 Hz RMS rated power 3 W Ports & interfaces AUX in Yes USB connectivity Yes USB connector type Micro-USB 3.5 mm connector Yes Bluetooth range 10 m Bluetooth profiles A2DP, AVRCP, HFP, HSP Bluetooth version 5.0 Bluetooth Yes Wi-Fi No Connectivity technology Wired & Wireless Design Carrying handle(s) Yes On/off switch Yes Volume control Buttons Product colour Multicolour Product type Mono portable speak