This Speaker has Radio， simply play Radio on your phone or other Bluetooth devices and connect with this speaker and listen Radio via this speaker. Play songs through AUX (3.5mm audio)， Bluetooth， and SD memory card. Speaker has a built in microphone so you can take calls on the speaker. Has a slot for microSD memory cards， so you can put that in and play songs from there. LED Disco Multicolour Lights with different modes makes this speaker attractive to Listeners. Lights go all the way around the speaker at the top and around the side which gives a cool disco effect. This is a Smart Bluetooth wireless portable speaker with easy & clear voice guide. Its multiple modes provide you endless resources where you can stream favourable music. Excellent bass performance of this speaker allows you to have a real audio enjoyment. Wireless， hands free， that's what you need to be with music everywhere. Features: With micro SD TF card slot， you can play mp3 / mp4 format files in the TF card Support A2DP， AVRCP， headset， hands free profile Wireless portable mini Bluetooth stereo speaker system Saves you from the hassle of tangled wires Expanded BXS (Bass Expansion System) drives a fuller， richer low-end response Built in rechargeable battery， charged by computer via USB interface This model of speaker supports any mobile device comes with Bluetooth function such as IPHONE， IPAD， Samsung Galaxy/Note/tablet， Laptop， Tablet PC， etc. Compact and portable， convenient to carry Connect via BluetoothSpecifications: Bluetooth Fashional design with colorful flash light Working Range Up to 10m (about 33 feet) Charging Time 3-4 hours Working Time 5-6 hour Speaker:- 4Ω/3W Battery Charging Voltage 5V Loudspeaker Output: 3W (R/L) Power: DC – 5V/650MA Frequency Response: 90Hz~18kHz Sensitivity:- 500mv±50mv FM Radio: 87.5MHZ – 108MHZ Signal Noise ratio - ≥70db S/N: ≥95db Distortion: ≤0.5% Mode:- Bluetooth， FM Radio TF card play， Audio in， USB input Built-in Li-Ion Rechargeable BatteryPackage Included: 1 x Bluetooth Speaker 1 x USB Cable 1 x 3.7V 550mAh Battery