This pocket size FL-01 Portable Color Changing Bluetooth Rechargeable Mini Speaker features Bluetooth function Color Changing function make it look gorgeous in the night. It's a perfect combination of music and light. Hands free feature enables you drive safely and conveniently. Answer income calls without any disturbance. Strong and balanced subwoofer give you wonderful music experience. Compatible with iPhones， iPads， smartphones， tablet PCs and other bluetooth devices. Built-in rechargable 500mAh Li-ion Battery able to provide 3-4 hours Music Play Time Intelligent voice reminder enables you to enjoy a new reformation of phone calls. Main Features: Built-in FM radio Compatible with all Bluetooth devices， such as mobile phone， notebook，and MP3 player.etc One-of-a-kind Color Changing function make it look gorgeous in the night Able to turn off all the lights to save power Intelligent voice reminder Support Bluetooth hands-free calls， answer your phone directly with Bluetooth speaker Support AUX external audio input， such as mobile phone， computer， MP3 player Supports Maximum 32GB MicroSD (TF) Charging Voltage:DC 5V Product Size (L x W x H):6.0 x 6.0 x 5.5 cm / 2.4 x 2.4 x 2.2 inches