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2. Laser pointer - Wikipedia

   en.wikipedia.org/wiki/Laser_pointer

   Red (635 nm), blueish violet (445 nm), and green (520 nm) laser pointers. A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i.e. coherent light) to highlight something of interest with a small bright colored spot.

3. List of Logitech products - Wikipedia

   en.wikipedia.org/wiki/List_of_Logitech_products

   Rechargeable Li-Po (500 mAh) battery: Full charge can last 70 days. Able to connect to three separate devices. Logitech Flow compatible [25] MX Master 3 for Mac 2020: 7: Free Spinning (toggled by software - various methods available) Darkfield Laser: 200-4000: Bluetooth 4.0: Rechargeable Li-Po (500 mAh) battery: Full charge can last up to 70 days.

4. AAAA battery - Wikipedia

   en.wikipedia.org/wiki/AAAA_battery

   The opening of a 9-volt battery to reveal six LR61 cells, which are similar to AAAA cells. This battery size is most often used in small devices such as laser pointers, LED penlights, powered computer styluses, glucose meters, and small headphone amplifiers, with Microsoft's Surface Pen the most prominent product taking AAAA batteries.

5. Wi-Charge - Wikipedia

   en.wikipedia.org/wiki/Wi-Charge

   Because laser power in the single-digit watt range is used for energy transmission, ensuring product safety is crucial. Wi-Charge has stated that its technology complies with the IEC 60825-1 International Safety Standard (laser safety). According to this standard it is a Class 1 product.

6. Rechargeable battery - Wikipedia

   en.wikipedia.org/wiki/Rechargeable_battery

   A battery bank used for an uninterruptible power supply in a data center A rechargeable lithium polymer mobile phone battery A common consumer battery charger for rechargeable AA and AAA batteries. A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be ...

7. SureFire - Wikipedia

   en.wikipedia.org/wiki/SureFire

   Several flashlights are available with rechargeable battery packs. In 2010, Surefire released the E2L AA, designed to operate on AA batteries, as does the Minimus™ AA headlamp. [8] Surefire sells rechargeable "LFP123A" lithium ion batteries for all LED flashlights as a replacement for CR123A. Surefire also produces military weapon lights for ...