The RS 160s are the entry-level model in Sennheiser's current line-up of over-the-ear wireless headphones. Priced at around £140, they're not exactly a low-cost option, though, especially as they don't include fancy extras like noise-cancelling circuitry. But Sennheiser believes these headphones' sound quality can justify their asking price, so we were keen to put them to the test.
The headphones have a traditional over-the-ear design. They're made entirely from plastic and most of their surface is covered in a matte black finish, but the outward-facing part of each earpiece has a glossy coating, adding a touch of style.
In the box, you'll find a pair of NiMH rechargeable batteries that fit into a compartment under each of the removable ear muffs. The cans also come with a power adaptor that's used for both powering the disc-shaped transmitter and charging the headphones via the socket on the bottom of the right-hand earpiece. The transmitter can also be powered via a pair of AA batteries if you want to use it when you're on the move, but these aren't supplied as part of the package.
The transmitter has a standard 3.5mm stereo input mini jack, so you can connect it easily to a hi-fi, computer or MP3 player using the supplied cable. As it has a built-in pre-amp, there's also a small volume control on the rear to let you adjust the output level independently of the volume control on the headphones. Interestingly, it also has multi-point capability, so it can communicate with up to four pairs of RS 160s at any one time.
The headphones will run for around 24 hours once they're full of juice, although this depends on the distance between the transmitter and receiver, and the volume you use them at. Nevertheless, we found we easily got around 20 hours of use from them.