Key Takeaways
1. Versatile Gadget: The Crankspeaker combines multiple functions, including a hand-crank charger, powerbank, Bluetooth speaker, area light, flashlight, clock, and FM radio.
2. Battery Performance: It features a 4,000 mAh battery that can provide extensive usage: 44 hours of radio, 50 hours of flashlight, and 266 hours of area light when fully charged.
3. Cranking Power: One minute of hand-cranking can power the radio for about 5.1 minutes, the flashlight for 5.6 minutes, and the area light for 30 minutes, plus provide 2 minutes of smartphone talk time.
4. Audio and Controls: The device includes a 45 mm driver for sound, Bluetooth 5.3 connectivity, an LCD screen for displaying time and battery level, and various control buttons for different functions.
5. Dimensions and Price: The Crankspeaker measures 195 x 72 x 78 mm and weighs 450 g, available in black and light grey for 14,800 yen (~$110) on Rakuten.
Rhythm has launched the Crankspeaker in Japan, a versatile gadget that merges a hand-crank charger with a powerbank, Bluetooth speaker, area light, flashlight, clock, and FM radio into one device.
Battery Specifications
The 4,000 mAh battery can be recharged without needing an outside power source during emergencies, but it can also be charged via a USB Type-C power supply (DC 5V/2A). When the battery is fully charged, it can offer up to 44 hours of radio use, 50 hours of flashlight usage, and 266 hours of area light operation, as stated by the company.
Cranking Power
Using the hand-crank for one minute can yield about 5.1 minutes of radio playback, 5.6 minutes of flashlight use, and 30 minutes of area lighting. Moreover, one minute of cranking can give enough power for a smartphone for 2 minutes of talk time or extend its standby time by 30 minutes, according to Rhythm.
Audio and Control Features
The Crankspeaker is equipped with a 45 mm driver and a passive radiator to deliver sound when paired with Bluetooth 5.3 audio devices or through its built-in FM radio. At the top, an LCD screen shows the current radio station or time, alongside the battery level. Control buttons on the side manage the device, including the flashlight (95 lumens high, 20 lumens low) and area light (20 lumens high, 2 lumens low). The USB Type-A port allows for charging smartphones and other gadgets (DC 5V/2.1A max).
Dimensions and Weight
This IP44-rated product measures 195 x 72 x 78 mm (7.7 x 2.8 x 3.1 in.) and has a weight of 450 g (15.9 oz.).
The Crankspeaker can be purchased from the Rhythm store on Rakuten at a price of 14,800 yen (~$110) in black and light grey colors. For readers in America looking for something alike, there is a hand-crank radio available on Amazon US that features a built-in solar panel, flashlight, and powerbank.
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