Panasonic RQS11 is a portable cassette player with a range of features to enhance your listening experience. It has Dolby Noise Reduction to reduce noise, a 5-XBS switch to boost the low frequency range, and auto reverse to automatically play both sides of a cassette tape. You can also use the fast forward and rewind buttons to quickly navigate through your tapes. The Panasonic RQS11 is a versatile and easy-to-use cassette player that is perfect for listening to your favorite music on the go.