Jumbo 1.8″ high-contrast green LED display; Wireless charging for compatible smartphones & other Qi(R)-compatible devices; Dual alarm/clock/sleep/snooze; PLL FM radio with 20 preset settings; Aux input ; USB charge port provides power for smartphones or other mobile devices; Display dimmer with 2 settings; Stereo speaker output; Battery backup (functioning time/alarm); Power: AC 100V-240V adapter, Qi(R)/USB charge output (5V, 1A), 2 x AAA batteries required for clock backup;