NBY 6650 Portable Multi-function Bluetooth Speaker 3D Surround Stereo Sound, Support Wireless Charging Feature: 1.Superior sound quality: Enjoy your music through 5W dual high-performance drivers and an unique enhanced bass. 2.Multifunction button control: Easily manage audio playback and calls with volume controls, multifunction button, and built-in microphone. You can even connect the Bluetooth speakers directly to a non-Bluetooth-enabled device with the 3.5mm audio cable. 3.Wireless portable bluetooth speaker: Enjoy a High Definition stereo sound with a impressive volume.Portable Bluetooth speaker with 10m wireless range,you can go just about anywhere with the sound carrying clearly across several rooms without being too loud and distorted 4.Bluetooth 4.2 technology: Equipped with the advanced technology,compatible with all Bluetooth compacity devices.Speaker automatically reconnects to the last device used 5.Long playtime: Built-in Li-Ion1800 mAh rechargeable battery guarantees up to 8 hours playtime. Recharge in just 1-2 hours with included micro USB cable Specification: Brand name:NBY6650 Bluetooth Version: BluetoothV4.2 Speaker: 5W X 2 Microphone: Hands-Free Microphone Material: ABS Plastic Pairing Range: upto 10 meters under barrier-free condition Input Voltage: DC-5V1.5A Battery capacity: 1800mAh Charging time: about 2.5 hours Playing Time: about 8 hours Package included: 1 * Bluetooth Speaker 1 * AUX Audio Cable 1 * USB Charging Cable 1 * User Manual