Description:When you are listening to music， do you want music sound to be louder and fair-sounding? Do you need a mini speaker to make your music perfect? Come on! Today we will introduce this mini USB speaker to you. Enjoy high quality stereo sound with this mini speaker.Features:- This digital speaker can be deemed as perfect combination of classic and modern performance， and it is praised as masterwork of audio boxes- New mini aluminum vibration film loud speaker， which has clear alt and pure woof. The unique design makes tone performance perfect- Mini audio bow with new concept integral stereo portable mobile music， connecting your MP3，CD，DVD，iPod，iPhone，iPad，GPS，PSP，mobile phone， notebook computer， Micro SD/TF card etc- Metallic， shell shows noble and fashionable， our of ordinary- Several power supply manners including battery， computer USB， adaptor DC-5V allow your to enjoy the charm of digital products at any timeSpecification: - Output power: RMS 3W THD=10%- Frequency response:150~1800Hz(?��3dB)- SNR:?Y80dB- Speaker:1.77 inch(diameter 45mm)magnetically shielded， 4 ohm- Save/Download:USB data cable download， no external card reader- Power Input: USB power adapter cable or AC adapter 5V/1000mA- Color: Blue， Rosy， Green， Black， Silver(as pictures shown)- Dimension: 50 x 50 x 49(L*W*H)- Weight: 150gNote: the item without original packing， we will repackage the item by wrapping foam bubbles to reduce shipping weight and also paper， bag waste. The item will be treated well and also protected well. Please help us Reduce waste， Let us protect the environment together! Thanks!Package Included:1 x New TF card Portable Mini Digital Speaker(No retail box)