Usage Tips:Item Type: Alarm Clock Radio Material: Metal + Glass Bluetooth Version: 5.2 Receiving Distance: Approx. 10m/32.8ft Output Power: 3W x2 Built in Polymer Lithium Battery: 2200mah Speaker Power Supply: 3.7V1HD Function: Built in high definition call microphone, equipped with intelligent noise reduction technology, no noise and no delay in the call, as clear as a face to face conversation. 2Superior Quality Sound: Dual sound unit, high powered dual speakers plus heavy bass diaphragm, bright sound without distortion explosive power, so your ears enjoy the good fun of music. 3Stable Performance: Built in FM radio module and configured with an external antenna, so that the band frequency stable reception, covering most of the national radio frequency. 4Long Range and Low Noise: Approx. 10m/32.8ft transmission distance varies depending on environmental factors and mobile Bluetooth devices. Built in noise cancellation, to show the taste of life . 5Adjustable Design and Long Battery Life: Desktop alarm clock Bluetooth speaker, three levels of brightness adjustment. Built in polymer battery, charging and discharging life longer so that you can listen to a time enough. 1 xAlarmClockRadio 1 x Manual 1 x Charging Cable 1 x Receiver Stick 1 x Cable