Allinone CD player with Bluetooth transmission, loop playback, TF card support, and 3.5 mm audio output. It plays CD, CDR, CDRW, MP3, MA, and AV formats, and includes a builtin 2000 mAh battery for extended use. Key features and benefits Integrated wireless and wired playback: Bluetooth transmission for wireless speakers or headphones, plus 3.5 mm audio output for wired devices. Flexible format support: Plays CD, CDR, CDRW, MP3, MA, and AV formats for broad compatibility. Continuous listening option: Loop/repeat playback keeps music or audio going without manual restart. Longlasting power: Builtin 2000 mAh battery provides extended listening sessions and reduces the need for frequent recharging. Portable and compact: Light and compact body with dimensions of 138 x 165 x 25 mm and a net weight of 330 g. Safety note: concern chemicals None. Specifications and physical attributes Size: 138 x 165 x 25 mm Net weight: 330 g Battery: 2000 mAh builtin Output: Bluetooth transmission and 3.5 mm audio output Formats supported: CD, CDR, CDRW, MP3, MA, AV Use scenarios Living room listening: Connect via Bluetooth to a speaker or wireless headphones for convenient, cable music from CDs or MP3s. Travel and on the move: Use Bluetooth to a portable speaker or headphones; alternatively load music onto a TF card for offline playback. Outdoor activities: Camping or picnics with TF card or CD playback and looped playback to enjoy extended audio sessions without recharging frequently.