Features: 2pcs 4Ohm 3W 40mm diameter full-ranged auditory speakers subwoofer speakers Two mounted mini auditory speakers, auditory speakers subwoofer speakers, great for radio, multimedia speakers Can be used as wireless speakers, radio replacements, and also suitable for DIY soldering. 1.5inch type combined paper cones PU side configuration, powerful bass, clear and stable -high frequency. Strong double neodymium iron full power, naturally sound, high volumed suitable for wireless speakers, light speakers