Want a speaker with crystal clear audio & communication? This speaker offers incredible sound quality for all music lovers. The 5W audio driver provides deep, resonant bass, a clear crisp sound, and playback at high volume without distortion or other audio problems. It features a built-in microphone for taking calls, and makes easy wireless connections anytime, anywhere. Use with phones, tablets and almost any other Bluetooth-enabled device. 

Features:  

•  Portable Bluetooth Speaker,built-in bluetooth 4.2 wireless transmission, working distance up to 10 meters.
•  Compatible with all Bluetooth devices such as smart phones, tablet PCs, iPOD ...
•  Built in Lithium Battery 2200mAh, support rechargeable battery
•  Support hands-free when answer calling with mic.
•  Support external 3.5mm audio input terminals of all.
•  Support Big power 5W, Speaker unit size: 4ohm 5W
•  Support time LCD display, can set alarm clocks
•  Support fm radio/TF card/U-disk music play
•  Support stereo subwoofer sound music player
•  Support Remote control, wireless connections 10m effective distance

 Specifications:

• Product name: MX-21 Bluetooth Speaker
• Output power: 5W
• Impedance: 4ohm
• Frequency response range: 100Hz-20KHz
• FM radio frequency range: 87-108MHZ
• Support: MP3, WMA,WAV, FLAC format music
• Battery:3.7V 2200mAh rechargeable 
• Power supply: DC 5V/1A
• Transmission distance: 10 meters
• Product size: 120 x 120 x 95 mm
• Colors: Black
• Material: ABS+plastic
• Functions: bluetooth,clock,alarm clock,AUX,FM,TF,U-disk