I preferred RS170 to RS180 because it allows me to listen as the sounds of a video tape (be careful, however, the surround effect which induced my choice is not as good as a home theater but improves good listening) and music CDs (can enhance the bass). Bandwidth and interesting report / very good signal noise. It is well insulated from the outside, these helmets to large atria of course have the disadvantage of providing heat under the pads. The batteries are rechargeable and especially of a current model (AAA), therefore not involving the purchase of a battery type for which prices are often very high. It has quick access gently turn the headset side pad. 2 ways to recharge: either from an independent fast charger (10 mins) or by placing it on the basis that does not suppose to be on. An orange light comes on until the batteries are recharging). You can adjust the surround and / or low either from the base or from the headset. I recommend to prepare its settings as to reach the buttons on the headset, it's not easy. They are on the edge of the right atrium and there are 5 buttons (volume up - on / off the headset - low volume - Surround - bass). International adapters for connecting the base in any country. One cable with two jacks are supplied with 3.5 male but if your amplification system operates from an additional RCA cable is provided with a female jack and 2 RCA plugs. To the ear, the sound is "warmer" than the RS85 helmet that I had for many years. For me, it does not assume the use of bass enhancement but everyone does as he pleases. The pads in the headband of the headphones allows those who have no or little hair to not be bothered by the rigidity of the hoop. This is a good product, nice whose volume is deliberately limited to protect the ears but an acceptable level. A little expensive because of 4 stars. Happy listening.
