1、Red and black jointed power , thread tightening, convenient to use 2、The screw nut is made of high-grade alloy, which can protect against corrosion and ensure the highest quality sound without distortion 3、Color-coded blackred to maintain correct polarity 4、Applicable to professional power , stable performance, compact, reliable and durable 5、Connection mode: use with 4mm banana plug connection, or directly press the cable Features: 1. Red and black jointed power , thread tightening, convenient to use. 2. The screw nut is made of high-grade alloy, which can protect against corrosion and ensure the highest quality sound without distortion. 3. Color-coded blackred to maintain correct polarity. 4. Applicable to professional power, stable performance, compact, reliable and durable. 5. Connection mode: use with 4mm banana plug, or directly press the cable. Specifications: Material: Alloy + Plastic Quantity: 4PCS, 8PCS, 10PCS (optional) Connection type: Thread tightening Size: Approx. 3.5 x 1.5 x 4.5 cm 1.4 x 0.6 x 1.8 in Weight: Approx. 101-252 g Package List: 4 x Conjoined Terminal Note: Please note that the new type and the old type of this product will be sent randomly, and make sure you do not mind before ordering. Guaranteed Satisfaction: Customers are our top priority. If you find any problem with the product, please contact the seller immediately. We strive to provide satisfactory after-sales service.