Item Type: Speaker Material: Walnut Voltage: 5V Current: 2A Speaker Power: 2 x 3W Vibration Frequency: 100Hz-18KHz BT Version: 5.0 (10 Meters Barrier Free Transmission) Battery Capacity: Polymer Lithium Battery 1200mAh (Included) Charging Time: 2-4 Hours Play Time: Approx. 3-4 Hours Standby Time: 30-40 Hours Product Size: Approx.19.9 x 7.9 x 7.1cm / 7.8 x 3.1 x 2.8in Weight: Approx. 505g / 17.8oz 1、Multifunction: It is both a speaker and a digital alarm clock, stylish but not monotonous, and good music wakes up a beautiful day. 2、360° Shocking Stereo Sound: High definition dual speakers, clear and powerful drums, surging stereo heavy bass, giving you the listening experience you want. 3、Automatic Brightness Adjustment: Automatically enter the power saving mode in 3 minutes, and the brightness of the clock screen will be dimmed to help you sleep comfortably every night. 4、Stability: The newly upgraded BT 5.0 chip realizes high quality sound transmission, lower operating power consumption, and more outstanding compatibility and stability. 5、Fully Compatible: Compatible for IOS, for Android systems and various apps. Multiple playback modes, both wired and wireless, enjoy different sounds anytime, anywhere. 1 x Speaker 1 x USB Power Cord 1 x User Manual