Note: This is a DIY kit, you need to assemble it.  Description: The Kit is integrated circuit TDA2030 as the center of power amplifier, with less distortion, peripheral components, simple...

Description:  Product Name: TPA6120 Headphone Amplifier Board;  Chip Type: TPA6120A2;  Input voltage:Dual AC12-24V(recommend dual AC12V 30W);  Output impedance: 8-600 Ohm;  Protection function: short circuit protection, over temperature protection;  Size: 80*52*19MM. ...

  This is a mini ultrasonic levitation device that can suspend foam balls. The device consists of a single chip microcomputer, a driver chip and two ultrasonic probes. Mainly used...

Product parameters:  Size: 33mm x 22mm.  Operating voltage: 4.5V to 24V DC.  Module function: South and North poles distinguish, the South Pole is close to the bright blue light, and...

Feature:   Kit model: HBL-22.  Working voltage: DC4--6V.  PCB size: 50.7 x 50.7mm.  Package weight: 23g.  Color: Red LED.  Speed adjustable.    Package includes:   3 x DIY red led...

Feature: Operating voltage: DC5V.  Operating current: 35mA.  Accuracy: ± 1mA.  Measurement range: 0 ~ 2A.  Outrange display: The first data 1 or -1.  Display color: Red.  Type: Not assembled kit. ...

Description: Kit Name: ICL7107 Voltmeter DIY Kit.  PCB size: 70.6*39mm.  Head mounting opening size: 77*40mm.  Display window size: 51*24mm.  Electrical parameters:   Working voltage: DC5V.  Working current: 35mA.  Measurement accuracy:...

Description: The light changes from bright to dark, and then gradually changes from dark to bright, feeling like a person is breathing. Widely used in digital products, computers, audio, automotive...