The speaker is delicate craft, compact and portable, convenient to carry and use. Engineering lastics player body, high mechanical strength, nice heat resistance and electrical insulation. Directly USB charge, built-in large capacity cell, short charge time could storage large energy to ensure long work time.Features:Delicate surface printing, compact and portable, convenient to carry and use.Standard USB interface, support multiple way to charge.Clear sound quality, noise-free, perfect restoration of pure sound quality.Superior engineering lastics player body material, high mechanical strength, nice heat resistance and electrical insulation.Built-in large capacity cell, short charge time could storage large energy to ensure long work time.Multi-function, support reception voice function, BT connect function, automatical connection, life more convenient.The common guard plate, the ternary material, high temperature resistant electrolyte, safe and environmental friendly.5w high rate of work, environmental protection material.Exclusive APP, control visualization, rich lighting patterns and colors, quick selection of chapters, readers, etc.Specifications:Model: QB818Color: Black, White (optional)Material: Engineering LasticsApplicable Group: MuslimCharge Interface: USBRate Of Work: 3WBT Version: 4.0Storage Capacity: 8GBPlay Function: MP3Input Voltage: 220VOperate Way: Key, Remote ControlSound Channel: 2.1Support Format: TF CardCell: 1 * 18650 Lithium Cell, 3.7V 1200mAh (included)Work Voltage: 3.75-4.2VWork Electricity: 3-6APackage Weight: 600g / 21.16ouncesItem Size: 122 * 85 * 40mm / 4.80 * 3.35 * 1.57inPackage Size: 152 * 114 * 68mm / 5.98 * 4.49 * 2.68inPacking List:1 * Speaker1 * USB Cable1 * Remote Control1 * Instruction Book