Rated voltage: 24v Rated current: 3A Color: black Size: 5.5 * 2.1 mm / 0.22 * 0.08 inch Material: metal and high quality DC socket is best for: 1 audio and video products: MP3, MP4, DVD. audio; 2 digital products: digital cameras, digital cameras, etc; 3 remote control: Volume vehicles, doors, home security products for the remote control; 4 communication products: mobile phone, car phone, telephone, building equipment, PDA etc; 5 household appliances: TV sets, microwave ovens, electric rice cooker, electric wind, electronic human body scale,Electronic fat scale, electronic kitchen scale, etc; 6 security products: visual intercom, monitor, etc; 7 toys: electronic toys, etc; 8 computer products: camera, recording pen, etc; 9 fitness equipment: running machine, massage chair, etc; 10 equipment: blood pressure gauge, thermometer, hospital call system, etc. Package Contents: 20 * Socket Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.