[Compact & Mini Size] Ultra small size and portable design at just 3 ounces make Wireless Speakers fit into your jacket pocket easily. A carrying cord is also included for easy carrying. Ideal for home, office, party and travel use. [Selfie Remote Shutter Function] After successful pairing, the Portable Speaker can work as a wireless remote shutter when using together with your smartphone camera.Built-in microphone for hands-free calling function enables users to answer an incoming call without delay. NOTE:To switch between typing and Selfie Remote function during music playback, please double click the multifunction button. [High Quality Sound] Provide incredible sound quality performance by a 3W speaker driver for rich deep sound and low harmonic distortion. [Long Playtime] Enjoy up to 4 hours playing time with the built-in rechargeable 300mAh Li-po battery. Fully recharge in just 3 hours using the included Micro USB cable. You can play and charge simultaneously. [Wide Compatibility] Compatible with most smartphones, tablets, personal computers or other devices.