Name: MP3 Player Standby time (hours): 48 hours; Battery capacity: 80 mA; Headphone jack: 3.5mm; Playing time (hours): about 10 hours; Operation mode: button; Built-in battery type: special lithium battery; Interface: USB 2.0; Weight: 17.9 grams; Dimensions: 8.5 x 2.5 x 0.9cm;Precautions for use:&nbsp; 1. Connect the USB port of the computer to charge, please use the charger to charge the MP3 for more than 2 hours, otherwise it will easily cause the failure and damage of the built-in lithium battery of the MP3.&nbsp; 2. Please do not pay attention to the status of MP3 or charger indicator light when charging. 1.5 hours of power will be fully charged. When fully charged, the MP3 or charger indicator light will not change any state.&nbsp; 3. Do not connect the USB port on the computer for more than 2 hours. When the MP3 is unplugged from the computer, you must strictly follow the requirements of the computer&#39;s operating system, then remove the hardware, and then unplug the MP3. Otherwise, it is easy to cause the MP3 player to lose the software program.&nbsp; 4. If the new machine is in normal use, please do not upgrade the firmware of the MP3 player;Tip: There is no built-in memory card. So you need to buy an extra TF-card;Packing list:&nbsp; 1 x MP3 Player 1 x Instructions 1 x package boxNote: Due to manual measurement, please allow 1-3 cm error, thank you. Due to screen and other objective reasons, there may be a certain color difference, please understand. <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

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