+ Onboard 2W mono amplifier (5V power supply up to 3W) can directly connected speakers (recommended with 4ohm 3W speakers), 3.5mm gold-plated headphone jack can be accessed by headphones or external audio.
+ With MicroUSB power supply interface, using mobile bank power or USB charger power supply, can also be used 3.7V lithium battery, USB 5V power supply.
+ Support TF card (mobile phone memory card), U disk playback mode.
+ With a speaker terminal without soldering, easy wiring.
1) Support MP3 format, power automatically play, led status turn to red.
2) Support U disk (tested with 32G), TF card (tested with 16G) playing mode, power default TF card mode, if the TF card does not exist automatically jump to U disk mode, and both devices are installed, you can manually set the playback mode, please refer to the key operation instructions.
Key operation instructions:
+ "Prev / V--" key: "short press" to switch "Previous" song, "long press" to switch "volume down"
+ "Next / v ++" key: "short press" to switch "next song", "long press" to switch "volume increase"
+ "P / P / Mode" key: "short press" to "play / pause" switch, "long press" for the U disk, TF card "mode" select
+ "Repeat" key: "short press" for the "single / full song" cycle switch (no long press function)
1. Long press time about 2S
2. If you use U disk mode, the recommended 5V power supply, some U disk does not support 3.7V power supply.
+ Power supply range: 3.7 - 5.5V