Basic features:1. 2015 the lateset 4.0 chip2. Aluminum HIFI design3. Wireless， bluetooth V4.04. Graceful sound quality5. Special Fortified Speaker6. The latest decoder chip 7. Advance bass technology8. Support various music file9. 2000mah battery capacity10. Long time play & portableMore Details:1) 2014 New mini portable super bass Bluetooth Speaker2) For iphone， tablet PC， MP3， mobilephone， computer， etc3) Built-in 2000mah lithium battery ( 4-7hrs play time)4) Hi-fi sound output， good performance in bass5) The data transmission can reach 2.1Mbps6) Bluetooth signal transmission distance: up to 10 meter.7) Color: Silver， Blue， Black， Red， Pink8) Support Bluetooth， FM Radio， USB flash， SD card， AUX play.Bluetooth Spec.1. Version: Bluetooth V4.0 + EDR ( new chip )2. Frequency Range: 2.4-2.48GHz3. Communication Distance: Up to 10m4. Communication Protocol: HS/HF， A2DP， AVRCP， OPPMore Specification:1. Power Output: 5W x 22. Speaker Unit: 3��， OD45mm2. Frequency Response: 100Hz-18kHz3. IS/N Ratio: �� 85dB4. Distortion: < 0.3% 5. Bluetooth : V4.0+EDR6. Play time: 4-7 hours 7. Working Range: up to 10MSupport Function:1. Bluetooth V4.02. Hi-Fi Technology3. AUX Line In 4. Micro SD Card 5. Call Hands-FreeBattery:1. Capacity: 2000mAh2. Input Voltage: 3.7~5VButtons:1 Previous Song/Station2 Next Song/Station3 Play/pause/hands-free/Mode4 Call hands-freeInterfaces:1. Micro 5p USB port for power charging2. SD port for Micro SD card playing 3. LED light for Function Indication4. AUX port for Audio line input 5. USB slot for USB Flash play 6. On/Off for power switch