DROK 4 Inches 8 Ohm Full-Range Stereo Audio Speakers, 40W Portable HiFi Speakers DIY Loudspeaker Woofer for Desktop Computer Car Auto Motor Motorcycle;

Parameters：
Loudspeaker outer diameter: 116mm
Impedance: 8 ohms
Sensitivity: 87dB
Qts: 0.55
Effective frequency: 65Hz-6KHz
Rated power: 40W
Diagonal distance of screws: 108mm
Loudspeaker height: 69mm
Magnet diameter: 78mm
Hole diameter: 93mm

Package Includes:
1 x 4-inch Loudspeaker