Almocn 6Pcs Tf Card U Disk Play Mp3 Decoder Player Module With Audio Amplifier Product description: 1) Support MP3 format, playing power on automatically, playing state red LED indicator update. 2) Support U disk (be tested by 32G), TF Card (be tested by 16G) play mode; power on default TF card mode, if the TF card does not exist automatically jump to the U disk, and two kinds of equipment are installed, you can manually set the playback mode, please look at the key operating instructions. 3)Keys can be adjusted up and down track switch, volume + -, pause / play, mode switching, for details please see the key operating instructions. 4) Can be set button single /whole song ," default power up the whole song cycle, replacing the circulating mode by pressing the "Repeat" key. Key operating instructions: The "Prev/V--" key : " short press "is switching to"the last song ,"long press" is for "volume decreasing" The "Next++" key : " short press "is switching to"the next song","long press"is for"volume increasing " The "P/P/Mode" key :"short press"is switching to "play / pause", " long press"is U disk and TF Card mode's selection The "Repeat" key :"short press" is switching cyclically "single / song" (no press function)Note: 1 "long press" time is about 2S. 2 If you use U disk mode, some suggestions of 5V power supply, some U disk doesn?t support 3.7V power supply. Product specifications: Power range: 3.7-5.5V Dimension: 45mm*36mm Packing included? 6 * Mp3 Lossless Decoders Decoding Power Amplifier Product Features TF Card U Disk Play MP3 Decoder Player Module with Audio Amplifier Audio Decoding Player Module Micro USB 5V Power Supply With high quality, onboard 2W single channel power amplifier. Convenient to wire and refit; 4 buttons on the board for setting operation. Support MP3 format, playing power on automatically, LED indocator light when module is working. Support TF Card (mobile phone memory card), U disk playback mode With the speaker terminals without welding Mp3 lossless decoders power amplifier Mp3 player module Mp3 decoder board support TF card and USB. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!