Main technical parameters: 
 Rated Power: 6W 
 Frequency response :200-18000Hz 
 SNR: ≥ 80dB 
 Audio: MP3, MP4, CD, DVD, iPod, iPhone, GPS, PSP, cell phones, laptop computers. 

 Speaker unit: 2 micro-fidelity 1.5 inch aluminum diaphragm magnetically shielded speakers 4Ω/3W 

 Audio Input: 3.5mm stereo plug 
 Power input: DC5-6V/1000mA power adapter; computer USB; 450MA lithium battery. 
 Size: 170 * 50 * 53 mm 

 Material: Aluminum speaker enclosure; 

 Weight: 0.207kg 

 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. 

 Instructions for use: 
 ● Battery: built-in lithium battery, USB power, you can play music while charging. 
 ● 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. 
 ● DC-5V: DC 5V (0.4-1A) power adapter, available USB power. 
 ● OFF / ON: OFF switch audio stop the music, put ON the audio output by the amplifier. 
 ● ANT: FM antenna hole, the use of FM, with the audio cable into the hole to use. 
 ● SD: the SD card into the hole. 
 ● MD-116 both the U disk MP3, SD card decoding, but also both the FM radio function, built-in USB port, directly into the U disk, SD card, MP3 music to play, is the U disk, SD card, MP3 of the most good partner. 
 ● MP3 with USB plug directly into the USB interface, no audio connection, you can play MP3 music. 
 ● line U disk or MP3, the music will be played at high volume, then you can continuously press the VOL-, adjust the volume. 
 ● USB / SD / FM for the mode switch key, USB / SD / FM also preferred when both FM, then press it to switch modes.