Wireless Qi Charging Bluetooth Bedside Dual Alarm Clock with USB Charging. The iBTW39 is a fully featured bedside alarm clock with dual speakers for room-filling sound. Qi wireless charging for compatible devices. Control your music or take calls with wireless speakerphone over Bluetooth. Dual alarms for separate wake times and wake sources. A 1 Amp USB port keeps mobile devices charged and ready to go. Voice Button to activate Siri or Google Assistant on connected devices. Programmable Smart Button for custom control. Wireless Charging. Wirelessly charges Qi compatible devices (fast charges Samsung devices). Enhanced Bass. Rear-fi ring passive subwoofers. Speakerphone. Digital echo canceling and talk/end button. Audio Caller ID. Apple iOS 10 compatible. 7-5-2 Dual Alarms. Dual alarms to wake to different sources, at different times with every day, work week, and weekend schedules. Alarm Options are Wake to Bluetooth device or 4 built-in tones. Programmable Snooze with Durations from 1-59 minutes. Voice Control Button. Works with Siri and Google Assistant to play music, check weather, and more from your connected Bluetooth device. Dimmable Backlit Display With 5 levels of brightness. Designer Fabric Grill Woven for style and acoustics. 1 Amp USB Port to Charge mobile devices (cable not included). Reson8® Technology For clear, rich sound. AC Adapter. 100V - 240V universal voltage. Sure Alarm with Piezo Buzzer. Battery backup, CR2450 (battery included). Audio Output. 5W watts RMS.