The HDR lineup includes experimental over-ear headphones designed to work with Sennheiser's dedicated TV/Hi-Fi receivers. In fact, this is a complex radio receiver with a DAC and a sound card that connects to a TV or receiver, allowing you to listen to music or watch movies wirelessly at a distance of up to 100 metres. One of the features of this series is a joint movie viewing, when several HDR headphones are connected to the same receiver. Plus, the transmitter acts as a charger and headphone stand.


The earphones themselves are distinguished by excellent sound quality and a design with an increased level of comfort. Connection is carried out only by radio, a regular cable is not provided. Additional features include a bass booster and virtual surround sound, especially useful when watching movies. For convenience, a joystick with volume buttons and activation of additional functions is located on one of the cups.

Otherwise, these are quite standard closed-type over-ear headphones, which otherwise would most likely come out under the flags of the Sennheiser HD audiophile series. The average check for the HDR model is $100, the price range is very small, and their technical capabilities are almost identical. Small differences lie in the reproducible spectrum and battery life. Younger HDR models, usually, operate on a single battery charge for 15-18 hours, and abruptly options are able to live without recharging for a whole day.