Hi-Fi Speakers
zorfar 6Ohm 4Ohm Full Range Speaker 4 Inch Three-stage Equilibrium Hifi Tweeter Midrange Woofer Loudspeakers DIY Part 1PC(6Ohm-Round)
Impedance:4Ohm 6Ohm Rated Power:15W(Recommend power 8-20W) Peak Power:40W Frequency Range:64Hz-18.8KHz Sensitivity:88db Voice Core:25mm
https://www.bizrate.co.uk/hifispeakers/zorfar-6ohm-4ohm-full-range-oid37460256279.html