Original remote control RM-AMU216 (A2116431A) used for Music systems for the brand Sony.
This is an original model of the Sony remote control.
The dots found on some keys are called tactile dots or tactile reference points. These dots are designed to help individuals with visual impairments or in low-light situations to identify and use the keys more easily and accurately. Typically, tactile dots are placed on specific keys such as the central number (5) and function keys to facilitate their location and use.
It's important to highlight that the remote control has some buttons that operate with infrared (IR) and others that use Bluetooth. For the IR keys, it is necessary to have a direct line of sight between the remote control and the device, and the remote must be pointed at it. However, functions using Bluetooth do not have this restriction.
Despite not being designed exclusively for TVs, the remote control has generic functions compatible with Sony TVs, allowing you to power on and off the device, adjust the volume, and change the channel.
It uses 2 batteries of the type AAA
1.5V alcaline batteries AAA LR03, used in a great majority of remote controls.