Connect quickly and easily via Bluetooth 5.1. Connect to your car radio via the Laprize AUX interface. Wherever you are, the music from your CD will accompany you. Comfortable Touch Controls, Portable and Easy to Use: This touch-screen LCD speaker CD player is easy to operate and switches modes effortlessly. Measuring only 12.4 x 12.4 x 2.2 cm (4.9 x 4.9 x 0.86 cm), it easily fits in a pocket or travel bag. Long Battery Life: The CD player features a built-in portable battery that automatically charges in 7 hours and fully charges in 3 hours, making battery replacement very convenient. Anti-accidental Touch Protection: This CD player features multiple anti-accidental touch protection functions to ensure stable and smooth playback. The anti-accidental touch time for CD playback is only 45 seconds, and for MP3 playback, it's only 120 seconds. Compatibility: This CD player is compatible with various audio formats, including CD, MP3, CD-RW, and CD-R discs. Dimensions: 135mm x 135mm x 22mm Power: 20W - 32W Charging Current: 5A - 1A Version: 5.1 Bluetooth Compatibility: 5.1 Frequency Response: 50Hz - 20kHz Audio Interface: Master/Group Audio 3.5mm Function: Anti-accidental touch 3.5mm Battery Life: 7 hours Charging Time: 3 hours Compatible Software: AB Lectures Audio Format: Compatible with CD/CD-R/CD-RW/MP3 Included: 1 Teacher's Disc (No Files) 1 Teacher's Disc 1 Charging Cable 1 Headphone System Instructions Note: 1. When measuring the main dimensions, please allow an error of 1 to 3 cm. (All dimensions are in centimeters, 1 cm = 0.39 mm). 2. Please explain the reasons for the differences in display between monitors and smartphone screens, and the meaning of color difference. Note: Due to differences in lighting and image quality, the actual color of the product may differ slightly from the photograph. Size may vary considerably depending on the measurement method used.