SuperSonic Wireless Bluetooth Active HiFi Portable Speaker, Red (IQ-1428 Red) 2.1 Ch outdoor Bluetooth hifi speaker. Clear sound and heavy bass for a dynamic sound effect Bluetooth version: 3.0. Wirelessly stream music from any Bluetooth-enabled device such as your smartphone, notebook, iPhone or iPad Operating range: 10m. USB/SD inputs. FM radio 2 microphone inputs. 3.5mm aux input Rechargeable battery Lasts for hours 2200mAh. Charging voltage: DC5V. Charging current: 400Ma battery working voltage: 3.7V