Key benefits Four front control buttons for simple, ondevice tuning: power switch, bass adjustment, volume adjustment, and treble adjustment. Two 26inch passive speakers included as a pair for straightforward stereo setup. Wide source compatibility: supports connection to mobile phones, computers, MP3 players, and set boxes. Compact amplifier setup: amplifier supports a 12V power supply for small, energyefficient operation. Practical power plug: standard 55 x 2.1 mm power plug for easy connectivity. Product details Speakers: A pair of 26inch passive speakers. Amplifier: Supports a 12V power supply. Power plug: 55 x 2.1 mm. Controls: Power switch, bass adjustment, volume adjustment, treble adjustment. Connectivity and compatibility Compatible devices include mobile phones, computers, MP3 players, and set boxes. Designed for straightforward integration with common consumer electronics. Use scenarios Home entertainment: pair with a mobile phone or computer to enhance music, movies, or gaming audio in a living room or bedroom. Small events or presentations: connect a set box or other source for clearer sound during gatherings or meetings. Desktop or workstation upgrade: improve audio output from a computer for games, video, and multimedia tasks.