1. Doctor BOSE-DS100SE: A classic bookshelf style stereo speaker with high-quality sound effects and stable performance. It is also equipped with the Doctor's own Surround Sound processing chip, which can present a more realistic surround sound effect. In addition, it also has an independent subwoofer and remote control for easy operation.

2. YACARE DSP-9900: A high-performance karaoke front-end audio processor with anti howling professional ktv reverb and home karaoke function. It can provide clear and moving sound effects, and has multiple input modes and effect processing functions, making it convenient for users to adjust according to their own needs. In addition, it also has features such as anti-interference and noise reduction, making it suitable for various occasions.

3. JBL K240: A high-performance 2.0 channel bookshelf speaker with clear sound quality and wide range performance. It adopts JBL's professional sound technology, which can present a more natural and balanced sound performance. In addition, it also has a detachable singing arm and remote control, making it convenient for users to operate according to their own needs.

4. Audio Technica AT-HA50: A high-quality 2.0 channel wireless karaoke speaker with excellent sound performance and stable performance. It adopts Audio Technica's professional sound effects technology, which can present clearer and more moving sound effects. In addition, it also has a detachable singing arm and remote control, making it convenient for users to operate according to their own needs.

Overall, the above bookshelf speakers with karaoke function are well-known brands and products in their respective fields, with high-quality sound effects and stable performance. You can choose the product that suits you according to your needs and budget.