As someone who travels an enormous amount and as a music lover who his / / Laptop music player with him everywhere he goes, this gadget is a must have. The wireless is with cylinder shaped and built-in lithium battery. It is compatible with iPhone, MP4, , MP5, Laptop, Mobile Phone, Tablet PC, PC, /Micro Card, , MP3. Features - Mini wireless speaker. - Built-in slot, play music from card. - Allow you to enjoy your favorite music at anytime. - Operating range is up to 10 meters. - Compact size for ease of carrying. - With microphone, support hands-free phone call. Specification - - Material: Metal. : 6 * 5 * 5cm(L * W * H). - Support A2DP, AVRCP, headset, handsfree profile. - version: V2.1 + EDR. - Working range: Up to 10M. - Working time: 2-3 hours. - Loudspeaker output: 3W. - Frequency response: 280Hz-16KHz. - Signal-to noise: 95dB. - Distortions: 0.5%. - voltage/capacity: 500mAh. - Battery charging time: 2 hours. Package list: 1 * Speakers Mini Wireless Portable MP3 Music Player Subwoofer Home Audio for 6S / 6S Plus / Pro (White)