Power LEDs with 160 lumens total flux, neutral color temperature Three light modes: Turbo (160 lumens); Normal (75 lumens); Low (25 lumens) 360 degree ambient wide-angle spread 87.5MHz – 108MHz frequency range with internal antenna, storage upto 10 channels with numeric key input. Powerful 3W, 85 – 90 db/W in-built Speaker, Aux-in 3.5mm Ear phone jack with volume adjustment upto level 18 MP3 files through USB, SD card/TF card slot with size upto 32GB LED charging indicator displays charging effectiveness on a scale of 1 to 5 to help optimize panel placement LED battery indicator displays battery power remaining Active battery management automatically switches to low power when battery is running low, giving user 5 hours of additional ligh