Wireless Speaker Featuring High Definition Bluetooth� 4.0 Technology. Simply Pair Your Handheld Device With The Speaker To Enjoy Dynamic Stereo Sound. Features High Definition Sound With A Built-In Microphone For Easy Hands-Free Calling. Perfect For Your Home, Office Or Outdoor Activities. Includes Professional Sleep-Aid System To Improve Sleep Quality With Nature Sounds. Additional Features Include 14 Built-In Custom Alarms, 5W DSP Tuned Speaker, FM Radio, Thermometer, Voice Messages, Social Media Notifications And App Controlled Light Display Customization. Download �Divoom TimeBox App� And Pair Your Handheld Device To Fully Customize The Device Settings. 121 Programmable Gem-Style LEDs And Over 256 Vivid Colors. Pairs From Up To 30 Feet Away. Charging / Audio I/O Cord Included. 2000 mAh Battery. Up To 8 Hours Of Play Time.