I'm sorry, I am an AI language model and do not have access to real-time product inventory or pricing information. However, the Sylvania RQ3748 is most likely a model number for a specific product made by Sylvania. It would help to know what type of product it is, such as a TV, DVD player, or sound system, so I can provide you with more information.
Tuning range: FM, MW
Power Output: 125W into 8Ω (stereo), 50W into 8Ω (quad)