Pair of 26 inch passive speakers designed to work with an external amplifier for flexible, tailored audio performance. Key benefits and features Flexible amplification: As passive speakers, they require an external amplifier, allowing you to choose the power and tone shaping your space requires. Broad compatibility: Supports connection to mobile phones, computers, MP3 players, and set boxes. Simple tone control: Builtin control buttons include power switch, bass adjustment, volume adjustment, and treble adjustment for quick onthespot adjustments. Connector details: Power plug specification is 55X2.1mm. Power requirements: The amplifier used with these speakers supports a 12V power supply. Size and capability: 26 inch speaker pair designed to deliver a large, roomfilling sound when paired with a suitable amplifier. Usage scenarios Home stereo setup: Pair with a compact external amplifier to play music from a phone or computer, and adjust bass and treble to suit your room. Desktop or study area: Use with a PC or MP3 player for enhanced audio playback and clearer multimedia sound. Small events or gatherings: Connect to a compatible amplifier to provide background music or announcements in a small venue, with tone control to suit the environment.