[1200mAh Rechargeable Battery]The portable personal CD player comes with a 1200mh lithium battery. 't need to use AA batteries or always plug the charger into the CD player any more. You can use the included USB cable to charge for it, full charge at about 4 hours. Portable and convenient for you to carry it anywhere you to enjoying music[Multifunctional]The CD player has modern features. DIR: All the files can be played back repeatedly for mp3 4 Play Modes: Repeat a track, Repeat ALL, DIR, INTRO, SHUF[More Compatibility]Widely compatible with CD, MP3 CD, CD-R, HDCD formats, AUX connected with all audible devices 3.5mm audio input, like connecting the speaker or headsets or car, this CD player gives you more choices to enjoy your favorite Music. NOTE: Please check whether your disc is rotating or not. If your disc isn't compatible, it 't work[Perfect Choice as a Gift]Small and music CD player with classic black color, appearance with perfect LCD display. It is the for music enthusiasts, language learners and expectant mothers, and the warmest gift for , and childrenKey lock: After playback mode and have been setup, you can toggle the power switch to the HOLD position in order to prevent the environment, for example naughty children or crowded occasions from affecting the setting of player.Specification:Power source: DC 5V or 1A, -USB2.0 StandardCharging voltage: DC 5V or 1AOperating voltage: 3.7VPower consumption: about 1.5WBattery: Lithium- polymer, 3.7V or 1200mAhD or C conversion: 16BitSampling frequency: 44.1KHZFrequency response: 20HZ-10KHZPower output of earphone: 16mWand16mW or 16-32OhmImpedance of earphone: 32Ohm or 16mWSupported disc formats: CD, CDR, HDCD, MP3Shockproof time: CD 60 seconds or MP3 120 seconds or moreColour: blackMaterial: ABSSize: 133 x 133 x 27mmPackage Contents:1 x Portable CD player1 x 3.5 to 3.5mm AUX cable2 x headphone1 x USB cableWarm Tips:1. Please turn off the "HOLD" key using it.2. Never Contact the lens of the device. Always keep the disc compartment closed to prevent dust from collecting on the lens.3. The player is only compatible with CD, CDR, MP3, HDCD formats.4. If the device is unable to discs properly, use a standard commercially available cleaner to clean the optics. Other cleaning methods may damage the optics.5. Clean the device with a clean, damp leather cloth. Do not use any cleaning agents.6. When charging, that the Power source and the Charging voltage are DC 5V or 1A. Excessive voltage input may cause machine overload damage.Only the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.