Saiyin Bluetooth Bookshelf Speakers, 30W X 2 Powered TV Speakers with 3.5 Inch Woofer, Turntable Speakers with OpticalAUXRCA Input for PC and TV

The Saiyin Bluetooth Bookshelf Speakers are powered speakers that do not need an external receiver to work. They can be connected to a PC via aux or Bluetooth. The speaker cable is 2 meters long and comes directly out of the passive speaker with a plug to connect to the powered speaker. The front plate of the speakers can be kept on or taken off. If you want to use the speakers with a turntable, the turntable needs to have a built-in or separate preamp and be switched to line-in. Saiyin provides free accessories lifetime for the bookshelf speakers, including a remote and can be contacted at support@sineaudio.com.cn. Overall, the Saiyin Bluetooth Bookshelf Speakers are well-received by customers. They are praised for their sound quality, ease of use, and good value for money. Some customers have noted that they are not suitable for large rooms and that there is no sub-woofer out to add an external sub-woofer. Others have mentioned that the speakers lack bass, and the highs and mids are more prominent.