Check the listing for details. FiiO SP3 BT HiFi Bluetooth Active Desktop Speakers,80W Stereo (Bluetooth, Black). Color: Black, Condition: New. Listed at 299.00 USD. FiiO SP3 BT HiFi Bluetooth Active Desktop Speakers - 80W Stereo Computer Speakers and Home Music Sound System with AUX Audio/COAX/OPTICAL/Type-C/RCA (Bluetooth, Black) Speaker features: 3.5-inch carbon fiber woofer + 1-inch silk tweeter, providing faster bass response and smoother treble performance. [Support hi-res Bluetooth format]: SP3 BT supports Bluetooth 5.0, LDAC/aptX Adaptive/aptX HD/AAC hi-res wireless format. Acoustic design: With waveguide design and S-shaped inverter, the SP3 can provide solid imaging and extend the low frequency, even at a small volume. Circuit design: Digital power amplifier from Texas Instruments, four channels output power independently (30W*2 for woofers+10W*2 for tweeters). Shape design: The 2.35L mini box adopts liquid metal die-casting technology, providing lower resonance and higher-definition sound. Function: Type-C/COAX/OPTICAL digial imputs. Adjustable bass gain, adjustable LED lighting effect, switchable left and right channels. [Parametric EQ]: Through FIIO’s self-developed PEQ algorithm and user interface, in any mode* you can choose the exact frequencies to be adjusted along with their gain levels and bandwidth – allowing you to fine-tune the sound to exactly the way you want it.