FM Radio Sleep TimerFM radio digital clock with sleep timer(10-120 Mins), frequency range: 87.5-108MHz.A loud and clear speaker can be adjusted volume to help you sleep with ease. Dual USB Charger Ports\u0026amp; Battery BackupDual USB charging ports to charge cellphone,tablet and other 5v electronics.With 3*AAA(Not included) bedroom bedside table clock constantly works whenever power outage or travel. Mini Alarm Clock with 5 Level Adjustable Brightness3.2' Portable LCD screen,5 level dimmable display provide comfortable brightness for you at day and night.Neither too bright to lit whole room nor too dim to see. Dual Alarm \u0026amp;7 Alarm SoundsDual alarm with 6 nature sounds (Water\/Bird\/Kanoon\/Spirited Away\/Beep\/Buzzer)plus 1 optional radio station.Select your favourite sounds for your every wonderful moment. Warranty Clauses of 45-day money back, 18-month warranty and friendly after-sales service.Any problem,please feel free and contact with us! Warmly welcome purchasing!