dodocool Mini Wireless Bluetooth Speaker with Selfie Remote Control Built-in Mic Rechargeable 33-Feet Wireless Range Compact & Mini Size: Ultra small size and portable design at just 3 ounces make it 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, it 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. 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 Bluetooth-enabled smartphones, tablets, personal computers or other devices.