2-Way Passive Bookshelf Speakers Starfavor Bookshelf Speakers allow for accurate and detailed sound reproduction, ensuring you can hear every nuance of your music. Passive speakers pair can be used in various settings and with a wide range of audio equipment. They can be connected to a stereo receiver, an amplifier, or even a computer or portable device with the right cables. 4-Inch Copper-sprayed Woofer Not only does the desk speaker's 4" copper-plated woofer dissipate heat more effectively than other types of woofers, ensuring the woofer will perform at its best even during extended periods of use, but it is also capable of handling higher power than other types of woofers level, which allows it greater flexibility in the types of music it can play, and also produces a more dynamic and punchy sound with clear and accurate reproduction of lower frequencies. 1.5" Aluminum Tweeter The passive speaker's 1.5" aluminum tweeter achieves an even distrib