The Sharp AN Series 3D glasses use a lithium coin battery that lasts over 75 hours before it needs to be replaced. They also automatically turn off if they sense inactivity for more than five minutes, so if you absentmindedly take the glasses into a different room, you are not wasting precious battery power.
These 3D glasses are some of the heaviest on the market, weighing in at 3.2 ounces. While this may not seem like a lot, it can feel like it when you wear them for 90 minutes or more. On the other hand, the heaviness of these glasses makes them a solid product that is not easily damaged.
An on-and-off switch is built into the side panel of the glasses for an easy way to consciously save energy. You can tell when the battery needs to be replaced by an LED indicator that blinks six times before the glasses automatically turn off. The best feature of the AN Series 3D glasses is the ability to switch from 3D to 2D and back again with one click of a button. 3D content is not for everyone, sometimes causing dizziness and nausea. In cases like these, Sharp's switch makes it so everyone can enjoy the film.
Sharp provides a special cloth for cleaning the glasses. The company suggests spraying cleaning solution on the cloth instead of directly onto the glasses. A drawstring pouch also comes with the glasses to keep them free of dust and particles.
Additional items the set includes are an extra battery, nose pad and glasses band. The two different sizes of nose pads are intended for both adults and children, and you can swap them in and out of the glasses as needed. You can make additional adjustments with the glasses band by attaching it to the earpieces to prevent slipping. A one-year warranty covers defects in material or workmanship.
The Sharp AN Series 3D glasses aren't rechargeable, but Sharp includes several additional items that other companies leave out of their packaging, like a carrying case and an extra battery. The option to switch from 3D to 2D is also a plus, especially if members of your family are prone to motion sickness.