This product is a player that integrates CD playback, Bluetooth transmission, loop repeating, TF CARD3.5mm audio output function, supports CD/CD-R/CD-RW/MP3/MA/AV format, built-in 2000mAh battery, worry-free battery life, light and compact body Single machine size: 138 x 165 x 25mm Single machine net weight: 330g Hign-concerned Chemical: None Fixed Type: Hook & Loop Fastener Use: DOOR Model: cd28 playback format: CD Audio cable category: Audio cable Speaker interface: RCA interface rated voltage: 5 CD entry method: tray type rated power: 5 With or without a display screen: Yes. Type of disc player: CD player Rated frequency: 40hz-20khz Color: Transparent Green / Transparent Material: ABS Package Contents: 1 * CD player 1 * Charging cable Only the above package content, other products are not included. Note: Light reflection 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.