Best Wake on battery

My Sleep Clock (Power Adapter Sold Separately)

  • My Tot Clock has a new little brother…My Sleep Clock! It includes several of the best features at a lower cost!.
  • Lullabies, Wake Music, and White Noise stored on My Sleep Clock (no separate Tot Clock Treasure is required)..
  • Runs on AC Power or 4 AA Batteries (power adapter and batteries sold separately). Energy-Saver feature extends battery life up to 1 month..
  • Includes a Weekend WakeTime Feature (different wake times for weekdays and weekends).
  • Changeable Faceplates make My Sleep Clock even more fun for tiny tots! Match My Tot Clock to your child’s interests or bedroom theme! Ships with the Moon & Stars faceplate. Other fun faceplate designs sold separately, including Princess, Dora the Explorer, Teenage Mutant Ninja Turtles, and Dinosaur Train!.
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REACHER Dual Alarm Clock and White Noise Machine Bundle (Black+Wood Grain)

  • ...me at a glance in 3 inch display. The wood grain design and small size (2.28*3.78*3.35 inch) makes it perfect for any decoration or home, travel, noisy hotel rooms, office use, etc.
  • Outlet/Battery Powered & USB Charging: Battery operated mode can maintain up to 3.5 hours with the volume on the highest setting (3 AAA batteries – not included). Maintains clock setting and ensures you wake up on time when you need to, even through power failures. Easy deal with power outage/travel. One USB port on the back can fully charged your phone/tablet while you sleep.
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REACHER Dual Alarm Clock and White Noise Machine Bundle (Wood Grain+White)

  • ...me at a glance in 3 inch display. The wood grain design and small size (2.28*3.78*3.35 inch) makes it perfect for any decoration or home, travel, noisy hotel rooms, office use, etc.
  • Outlet/Battery Powered & USB Charging: Battery operated mode can maintain up to 3.5 hours with the volume on the highest setting (3 AAA batteries – not included). Maintains clock setting and ensures you wake up on time when you need to, even through power failures. Easy deal with power outage/travel. One USB port on the back can fully charged your phone/tablet while you sleep.
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Withings/Nokia Steel - Activity & Sleep Watch

  • 24/7 seamless tracking - Automatic walk, run, swim & 10+ activities recognized. Plus calories burned & distance.
  • Sleep monitoring - Sleep cycle analysis plus silent vibrating alarm with Smart Wake-Up to wake you at the optimal point.
  • Premium materials - Stainless steel, chrome hands, silicone sport strap.
  • Automatic synchronization - Visualize trends and data on your smartphone with the free Withings Health Mate app.
  • Long lasting battery - Up to 8-month battery life.
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What We Were Promised

  • ✅ VIBRATING ALARM CLOCK: Vibrations on the wrist can alert the wearer without disturbing others.
  • ✅ COMFORT AND EASE: Positioned on soft washable sweatband for ease and support.
  • This small alarm clock has large digits for easy recognition.
  • ✅ IDEAL ALTERNATIVE TO: Hearing devices for the deaf.
  • Vibration ok to wake shake n wake silent alarm clocks.
  • ✅ ALARM AND VIBRATION SETTINGS: This battery alarm clock comes with 6 alarms and a 24 hours precision 1/100 seconds digital stopwatch.
  • ✅ USB CHARGEABLE: Powered by lithium rechargeable battery.
  • Fully charged in 4 hours with the USB cable provided (USB adaptor not included).
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Tinload Small Battery Operated Analog Alarm Clock Silent Non Ticking, Ascending Beep Sounds, Snooze,Light Functions, Easy Set(Black)

  • Compact Size -- measured at 3.25" x 3.25" x 1.6" , light weight (3.5 oz), 1 AA battery operated, fits perfectly as a desk /bedside / nightstand wake up clock, but also great for travel alarm clock ..
  • Completely Silent - Super quiet concise design alarm clock without annoying tick tock sound, ideal for those who need complete silence to fall asleep..
  • Snooze and Light Function– Snooze and light button locates on easy-to-find top place. Hold button down for 5 minutes snooze or to light up the clock face on demand to see the dial momentarily in the darkness..
  • Gentle Wake Increasing Volume--Ascending four beep alarm volume increases in four stages until the alarm is turned off or snooze bar on top is depressed. Good beside wake up alarm clock for seniors, teens, girls, kids..
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iHome iDL43B Dual Charging Stereo FM Clock Radio with Lightning Dock and USB Charge/Play - Black

  • ...lock Features: Dual alarms to wake at separate times,7-5-2 alarm schedule to wake you every day, weekdays or weekends. Gentle Wake peacefully wakes you with gently ascending alarm volume. Sure Alarm battery backup for alarm during power interruptions - Sure Alarm battery backup for alarm during power interruptions (batteries must be installed).
  • Qi Certified 10W Wireless Charger - The iBTW39 Clock Qi wireless charging for compatible devices, including smartphone devices like iPhone 12, 11, XR, XS, X, 8, Galaxy S20, Z Flip, Fold, S10, S9, S8, Note 10, 9 and More.
  • Dual Charging - With a 1 Amp USB port and 10W wireless charging pad, you can easily charge your smartphone, and smartwatch, or charge two smart devices at the same time using the USB charging port located on the back of the device (USB-cable not Included).
  • Dual speakers for room-filling sound - Control your music or take calls with wireless speakerphone over Bluetooth. Charge and play your compatible devices, or listen to your favorite music with the dual speakers. Two alarms can be set to help you wake up easier..
  • Compact and User-Friendly - iHome wireless charging alarm clock is a must for kids and students! If you and your kids have a hard time waking up for work or class, you and they will nee....
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SUCHDECO Kids Alarm Clock, Alarm Clock with Night Light, Digital Alarm Clock, Kids Alarm Clock OK to Wake, Kids Alarm Clock Boys Girls

  • 【USB Kids Alarm Clock 】Built-in rechargeable battery, even when the alarm clock is off, the battery still has residual power, which can be used for timed work. After the alarm clock is charged, it will display the time correctly even without resetting. The battery usually lasts 7-10 days. The batteries no longer need to be replaced, making it the ideal travel alarm clock.
  • 【Multifunctional Alarm Clock】The extra-large LED display has enlarged digits and is easy to read. Digital alarm clock with time, alarm, AM/PM, 12/24 hours and battery indicator. Music enjoyment and ringtones and can be adjusted to 5 freely adjustable volume levels, suitable for both adults and children, to make you wake up comfortably in the morning and have a to have a perfect day.
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Jensen Compact AM/FM Alarm Clock Radio with Large Easy to Read Backlit LED Display

  • Large Display - The large LED display features bright white LED backlighting so you can easily read the time.
  • AM/FM Radio - A built-in AM/FM Stereo Tuner lets you choose from a wide variety of radio, talk and music programming.
  • Gradual wake alarm - The gradual wake alarm feature starts with a subtle, low volume that gradually increases to a reasonably high level in order to gently wake you from sleep.
  • Snooze button - For those mornings when you just can't seem to wake up there's a snooze button to let you catch a little extra shuteye.
  • Battery backup - An optional backup battery keeps the clock working, even during a power outage.
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