【High-Quality Materials】3-Way audio frequency divider has high temperature resistant wire, wire wound ceramic resistor and imported metal film,robust and durable,can be used for a long time. | 【Adjustable volume】Small switch can adjust the treble (normally 3db can be added). You can adjust it according to your needs,can meet the different needs of consumers. | 【Three-Way Stage Professional Speakers】This is a treble + midrange + bass three-way KTV, stage professional speaker crossover and DIY upgrade tool. The crossover can separate the mixed and messy analog audio signal into the high, mid, and bass parts, and then send them separately Corresponding high, medium, and woofer speaker units are reproduced to improve the sound quality. | 【Over-current Protection Design】Simple and beautiful lines, reasonable component layout. Ensuring large load capacity, long-term durability and very good sound quality. High-quality Capacitors, low loss and high quality, no longer have the problem of electrolytic capacitors. The effective protection circuit operates normally. | 【After-sales Service】: If there are any using problems or unsatisfactory with our products, please feel free to contact us, our professional customer service team will reply you within 24 hours, and we will consult the issues with sincerity. Thanks for purchasing from us.