Computer speakers with two-way (woofer/tweeter) arrangement will give better sound output that normal speakers or bluetooth speakers.

Accurate sound reproduction depends on speaker size a lot. But Your laptop only comes with small tweeters, which are able to produce only a portion of the frequency band that humans can hear. 

Good computer speakers are reliable, easy to use, come with control options and most importantly, provide good sound.

The best computer speakers: Mackie CR3 (best sound quality, great price, user friendly)

The second best computer speakers: Mackie CR4BT (Bluetooth, 4-inch woofers, good bass, good sound quality)

The best computer speaker with bluetooth: Grace Digital GDI-BTSP201

The best computer speaker upgrade: Edifier R2000DB (blueooth)

The best stylish bluetooth speaker: Edifier Spinnaker

The best best affordable speaker with good bass: Logitech Z313 Speaker System