Listen to all of your favorite artists during outdoor activities by playing them through the compact circular speaker. Each speaker sports a Bluetooth® 2.1 technology which lets you pair your Bluetooth®-enabled devices from up to 30 feet away. You will hear your favorite tunes in high definition sound which grants a fun listening experience. Even better, you can answer hands-free calls through this speaker as it is equipped a built-in microphone. Expect up to 2 hours of play time with this speaker's 300 mAh lithium battery you can charge easily with the included charging cable.Note: The Bluetooth® logos and word mark are trademarks that are registered and owned by the Bluetooth SIG, Inc. and the use of these marks are all under license.