Main technical parameters: 
 Rated Power: 3W * 2 
 Frequency response :200-18000Hz 
 SNR: ≥ 80dB 
 Audio: MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, cell phones, laptop computers. 
 Audio Input: USB interface, speaker unit: 2 micro-fidelity diaphragm magnetically shielded 1.8-inch aluminum speakers 4Ω/3W 
 Power input: DC5-5V/500mA power adapter; computer USB; 900MA lithium battery. 
 Size: 78 * 58 * 50 mm Material: aluminum speaker enclosure; Weight: 0.15kg 



 Features: 
 1, the design is the perfect combination of classic and modern, speakers in Need. 
 2, the new aluminum diaphragm micro-speaker, clear treble, clean bass. Unique design, so sound quality was even better. 
 3, the new concept of integrated stereo portable mobile music, digital audio, connect to your mp3, mp4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phones, laptops, SD card. 
 4, batteries, computer USB variety of power supply, allowing you to listen anytime, anywhere digital charm. 

 Instructions for use: 

 Battery: Built-in lithium battery, USB power, you can play music while charging. 
 Play / Pause: to play or pause music. 
 Volume control: used to adjust the volume. 
 Previous / Next Track: used to select the previous or next song. 
 MICRO SD / TF jack: MICRO SD, TF card slot, insert the MICRO SD card can be stored in the card playing MP3 music. 
 USB interface: USB-powered audio input jack and enjoy the music while charging the battery. 
 ON / OFF: power switch, placed in the boot ON, OFF position put off.