ماژول آمپلی فایر استریو 18در2 وات همراه با ساب ووفر 32 وات اژول آمپلی فایر استریو 182 وات همراه با ساب ووفر 32 وات mp3 lossless decoding mp3 decoder board TF card U disk MP3 player decoder module selfpowered Module Highlights  super quality onboard 2W mono amplifier 5V supply up to 3W directly connected to the speaker Recommended with 4 3W speakers 35mm gold plated headphone jack can be connected to headphones or an external sound  with MicroUSB power supply interface the use of mobile power supply or USB charger powered via phone lines may also be 37V lithium battery USB 5V power supply  Support TF card memory card in your phone U disk playback mode  with speaker terminals without soldering for easy wiring  modular design easy modification  product description 1 Support MP3 format on the power play automatically when playing red LED status updates 2 U disk support tested 32G TF card tested 16G Play mode the default power mode TF card TF card is not present if the automatic jump to U disk mode and both devices have installed you can manually set the play mode details key instructions 3 can be adjusted up and down buttons to switch tracks volume   pause  play mode switching details key instructions 4 may be the key settings single  whole song cycle the default power cycle the whole song press the Repeat button to replace the circulation mode Key Instructions Prev  V button Press for the switch on a song long press is volume Decrease Next  v  button Press for the switch next song Song long press is volume increment P  P  Mode button Press for the Play  Pause switch long press Udisk TF card pattern Repeat button Press for the single  whole song to cycle no long press function Note 1 long press for about 2S 2٫ If you use U disk mode it is recommended 5V power supply and some U disk does not support 37V power supply Product Specifications Power range 37  55V Size 45mm  36mm