1. Support wireless BT headset connection, speakers. In the absence of obstacles, you can enjoy a pleasant wireless music playback experience within a radius of 10 meters. Multifunctional MP3 player with FM radio/recorder/video player/text reading. 2. Highly sensitive Press screen and lock screen keys: 1.8-inch screen and highly sensitive Press keys make the entire mini mp3 player and easier to operate. It is convenient to press the power button to lock the screen 3. When putting this music player in your pocket, you can lock the button to avoid wrong operation. It is very suitable for recreation and study, outdoor and gym fitness. 4. HiFi sound effects and FM radio: HiFi technology brings you lossless music. Try the FM radio function, you can listen to news/story/music, it will give you more choices. 5. Voice recorder-One-key recording: When you need to record important information in a class or meeting, one-key recording technology can help you record quickly in . High-sensitivity Press screen buttons, lightly Press to instantly present music. 6. Built-in memory, the player provides plenty of space for your and books. Support multi-format music playback and synchronization Product name: M22 MP3 player Battery: Environmentally friendly polymer lithium battery Recording time: about 35 hours Playing time: about 30 hours (plug in headphones) Recording : one-key recording, one-key saving Recording format: support MP3, WAV format WAV digits: 1536kbps MP3 digits: 384kbps Music player: MP3, WMA, OGG, APE, FLAC, WAV, AAC-LC, ACELP Video playback supports AMV, (Video files need to be converted by conversion tools) Picture browsing support Support JPEG, BMP, GIF format browsing Bluetooth module: BlueTooth4.2 WMA bit rate: 32kbps-384kbps Frequency response: 20Hz to 20KHz Signal to noise ratio: 90dB Headphone output: (L)9mW+(R)9mW (320hm) Headphone jack: 3.5MM USB interface: Micro-USB Control panel: millisecond capacitive Press panel (support backlight) Fiction Text: Colour:Black Material:Aluminum alloy Package Contents: 1 * MP3 player 1 * USB cable 1 * earphone 1 * English manual Only the above package content, other products are not included. Note: Light 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.