[1200mAh Rechargeable Battery] The portable personal CD player comes with a 1200mAh lithium battery. No more relying on AA batteries or constantly needing to plug in the charger. Simply charge it via the included USB cable; a full charge takes about 4 hours. It's portable and convenient for music on the go, anytime, anywhere. [Multifunctional] The CD player boasts various modern features. DIR: Play all files repeatedly like MP3s; 4 playback modes: Repeat Track, Repeat All, DIR, INTRO, SHUF. [Broader Compatibility] Widely compatible with CD, MP3 CD, CD-R, HDCD formats. Features an AUX connection for all audio devices with a 3.5mm audio input, allowing connection to speakers, headphones, or car stereos. This CD player offers more options to enjoy your favorite music. NOTE: Please ensure your disc is spinning. It will not function with incompatible disc formats. [Perfect Gift Choice] A compact and convenient music CD player with a classic black finish, smooth appearance, and a perfect LCD screen. It's the ideal choice for music lovers, language learners, and expectant mothers, serving as the warmest gift for friends, family, and children. Protects settings from disruptions by children or crowded environments. Specification: Power Supply: DC 5V/1A, Micro-USB 2.0 Standard Charging Voltage: DC 5V/1A Working Voltage: 3.7V Power Consumption: Approx. 1.5W Battery: Li-ion Polymer, 3.7V/1200mAh D/A Conversion: 16Bit Sampling Frequency: 44.1KHZ Frequency Response: 20HZ-10KHZ Hearphone Output Power: 16mW+16mW/16-32 Ohm Hearphone Impedance: 32 Ohm/16mW Supported Disc Formats: CD, CDR, HDCD, MP3 Anti-Shock Time: CD 60 seconds / MP3 120 seconds or more Color: Black Material: ABS Dimensions: 133 x 133 x 27mm Package Contents: 1 x Portable CD Player 1 x 3.5 to 3.5mm AUX Cable 2 x Headphones 1 x USB Cable Warm Tips: 1. Please turn off the "HOLD" button before use. 2. Never touch the device's lens. Always keep the disc tray closed to prevent dust accumulation on the lens. 3. This player is only compatible with CD, CDR, MP3, HDCD formats. 4. If the device fails to scan the disc properly, clean the optics with a standard commercially available cleaner. Other cleaning methods may damage the optics. 5. Clean the device with a clean, damp leather cloth. Do not use cleaning agents. 6. When charging, ensure the power supply and charging voltage are DC 5V/1A. Excessive voltage input may cause overload damage to the unit.