[ GIFT]Sound Module is to make a DIY music box, surprise as a birthday present,musical greeting cards, photo frames, album, gift box and the other gifts for Mother's Day, Father's Day and Valentine's Day, for . [8M MEMORY]With 8MB of internal storage, you can freely add any MP3 audio files to it. [PUSH BUTTON CONTROL]Installed in your project/gift, simply the button to play the music you input once, and Sound Module automatically stop when the song is over. [PROGRAMMABLE SOUND MODULE]The programmable sound module provides more possibilities to develop a module that fits your own project ly. Different trigger modes (button) can be by connecting different solder pads. [VOLUME CONTROL]The volume is adjustable, and the power supply voltage is 4.5-5V. We recommend using a 3.6V lithium battery, with an output power of 0.5-1W. Please connect to a computer with USB 2.0 port (black or white port), otherwise, the module not be recognized. Connect the red and black wires to the battery to . NOTE: Recommend using computer and not for . Material: plastic+metal colour: green Package Contents: 2 x Music Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.