Smart Clock is the perfect compact and portable companion. Innovative features such as a built-in wireless Bluetooth speaker, which connects with your smart device, so you can enjoy your personal music anytime. Brainwave sleep sounds help to provide quality sleep in any environment. An integrated microphone allows you to answer calls hands-free. LCD display time, music information Automatic time sync and alarm clock setting Brain wave sleep sounds Audio grade speaker Bluetooth music steaming and connection Built-in microphone for speaker phone Li-ion rechargeable battery lasts up to 5 hours of playback