Bộ mạch amply nghe nhạc tự lắp NE5532 DC9V-18V âm thanh sống động kèm vỏ trong suốt

47 Amp DIY NE5532 Hi-Fi Headphone Amplifier Kit with Transparent Housing DC9V-18V This headphone amplifier DIY kit adopts NE5532 operational amplifier, which can ensure good sound quality. Features: Adopt NE5532 operational amplifier. Play with good sound quality. Wide range for input voltage: DC9V-18V. Standard 3.5mm audio input/output interface. With rotating knob for volume adjustment. Components can be well protected by the transparent housing. Specifications: Quiescent Current: 6mA Power Supply: DC9V-18V(Recommend 12V) Audio Input/Output Interface: 3.5mm PCB Board Size: 60 * 40mm / 2.36 * 1.57in Finished Product Size: 70 * 50 * 22mm / 2.75 * 1.97 * 0.87in Product Weight: 64g / 2.23oz Package Size: Approx. 10.5 * 7 * 2.5cm / 4.13 * 2.75 * 0.98in Package Weight: 74g / 2.63oz Note: This is a DIY kit, you need to solder it by yourself. Package List: 1 * DIY Headphone Amplifier Kit with Transparent Housing 1 * User Manual(English)