BT®2301 LED Wireless Charging Speaker 3 in 1 Night Light Bluetooth Speakers with 15W Wireless Charger, LED Desk Lamp with Rechargeable Battery, FM RADIO

420 Concentration & meditation mode use the wireless charging speaker in your room, office or study, you can switch them according to the different moods, itis a good partner to adjust the atmosphere ,it will help you calm down and enjoy your yoga, spa and relaxation time. .wireless charging power 15 w Bluetooth vertion ; 5.2 Bluetooth name ; bt2301 Bluetooth frequency ; 2.4 GHZ- 2.48GHZ Transmission distance ; 10 m frequency response range ; 50HZ-20KHZ signal to noise ratio of the whole machine ; >75db built-in lithium battery voltage ; 3.7v charging input : DC5V/500MA