Features: Dual USB QC3.0 fast charging, improve charging efficiency. U-disk TF card expansion plug and use, up to 64GB expansion, free switch playing modes. High resolution, high performance stereo, no lag, support MP3 FLAC APE and other lossless music, multiple audio formats. Wireless BT5.0, for iOS Android systems, background noise reduction processing makes playing music and mobile phone calls clearer. Automatically reconnect and memorize the frequency when power turned on, after the song powered off and restarted, it will start playing from the first sentences of the song that was disconnected. Specifications: Material: ABS Interface: USB Voltage: 12-24V Output: 5V2.4A + QC3.0 Frequency: 87.5-108.0MHz Size: Approx. 73.9x43x38.4mm/2.91x1.69x1.51in Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Audio Player