Compatible to any Bluetooth devices with lion rechargeable battery for ultimate portability. Changing color lamp mode. Volume adjustment and music phone controls. It has TF card slot, AUX port, USB port, FM RADIO and karaoke function. Specification: – Wireless transmission range up to 10m – Speaker drive size: 6.5 inch – Output power: 5w – Frequency response: 100hz – 20khz – Signal Noise ratio: >=85db – FM scan: 87.5-108.0MHz – USB charging: DC5V – Battery Capacity: 1200mah – Can support SD card up to 32gb – Charging time: 3 hrs