Features: Bluetooth / USB 2.0 / Micro SD Stereo Clear Sound Effect Card Support / Modern Microphone Modern Design The built-in Citix speaker combines high-definition stereo audio with portability, allowing you to enjoy your music wirelessly wherever you want. Featuring a Dual 3-Watt Speaker Cavity for excellent sound, this small yet powerful speaker can fill any room with rich sound. Bluetooth connectivity lets you play wirelessly and control your music from Bluetooth devices and receive handsfree calls directly through the speaker. A built-in rechargeable battery lasts up to 4-5 hours per charge so you can enjoy your music all day. Citix Measures Approx. 11 x 2 x 1.5 inches. Use it at home, take it on holiday, enjoy camping, or set it to any other place you want to play your favorite music. Citix pairs directly with Bluetooth devices, such as smartphones, tablets and computers, let you send your favorite songs wirelessly to the speaker. Change songs and adjust the volume of the Bluetooth device or use the control buttons on the speaker. Check the speaker battery status on the phone. When the battery is low, the speaker will give you an audible warning. The speaker also gives voice signals for easy navigation through the different modes and status of the Bluetooth connection 1. Bluetooth Compatibility - Quickly syncs automatically to your device within seconds. 2. Built-in microphone - Allows you to talk through the speaker for hands-free calling. 3. Ultra Portable - Place it on your desk or on any internal or external surface. Perfect for the beach, party, camping, barbecue. 4. Multiple Toggle Functions - Allows you to control the playback elements of your device, such as Play / Pause, Skip Skip / Skip Skip. Technical details. Bluetooth standard: 2.1 + ESR Rated power: 3W + 3W Playback time: 5-8 hours Charging time: 3-4 hours.