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: 3.5mm stereo plug speaker unit: 2 micro-fidelity 1.5 inch aluminum diaphragm magnetically shielded speakers 4Ω/3W 
 Power input: DC5-5V/500mA power adapter; computer USB; 900MA lithium battery. 
 Size: 170 * 50 * 53 mm Material: aluminum speaker enclosure; Weight: 0.205 kg 

 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, U disk, SD card. 
 4, batteries, computer USB, Adapter DC-5V variety of power supply, allowing you to listen anytime, anywhere digital charm. 
 Help 

 Battery: Built-in lithium battery, USB power, you can play music while charging. 
 ANT: FM antenna hole, the use of FM, with the audio cable into the hole to use. 
 USB: removable disk (U disk) slot, insert U disk can play music saved on the card MP3 music. 
 DC-5V: DC 5V (0.4-1A) power adapter, available USB power. 
 Line in: audio input. Use of laptop computers, mobile phones or other players to do the output is connected to powered speakers to use the machine. 
 LCD screen: Boot display time, display the icon when the functional regulation; play music with lyrics in the file, then display the lyrics synchronized with the song. 
 ON / OFF: power switch, placed in the boot ON, OFF position put off. 
 TF: TF card slot, insert the TF card, can play music saved on the card MP3 music. 
 On \ Xiashou: used to select the previous or next song. 
 Volume control: used to adjust the volume. 
 Play / Pause: to play or pause music. 
 Mode switching: USB / SD / FM for the mode switch key, USB / SD / FM also preferred when both FM, then press it to switch modes.