CD4511 8 Channel Digital Display Answerer DIY Kit Electronic Skill Competition Teaching and Training DIY Part -2021.    Parameter:  Power supply voltage: 4.5-5.5V;  NO.1 to NO.8 are contestants, REST is...

Sound and Light Control Switch Kit Clap Switch Sound and Light Control Delay DIY Electronic Production Kit -2021.    Product manual:  Clap your hands and the LED lights up. After...

Hearing Aid Kit Audio Amplifier Loudspeaker Training Teaching Competition Electronic DIY Interest Production Parts -2021.    Description:  Voltage: 3V;  Audio output: 3.5M audio jack headset;  PCB outline size: 45 *...

Feature:  White noise signal commonly known as noise, similar to the noise floor of the radio. Use is very wide, such as testing and treatment of insomnia and so on! ...

60 Seconds Electronic Timer Kit DIY Parts Soldering Practice Board -2021.    Feature:  Operating voltage: DC5V;  Standby current: ≤8mA;  Working current: ≤10mA;  Countdown: 60 seconds;  Countdown ends prompt: three alarms; ...

Feature: Product Name: Photosensitive Robot; Product model: SFT-Q03YH; Supply voltage: DC3-5V; Battery type: CR2032 button battery; Sensing device: photoresistor; Power source: 0827 vibration motor; Tail Lights: Red LED 5MM; PCB size: 40*43*1.6mm; PCB material: FR-4; Note: This kit requires self-assembly.   Package...

Features:  18650 Battery Holder Case for soldering or connecting.  Takes 1 standard size 18650 batteries side by side to form a compact battery of 3.7V rechargeable.  Keep your batteries organized...

Specifications:  Number of sections: 2.  Uses: for 18650 battery (without battery).  With switch: Yes.  Size: 42*22*90mm.  Cable: 15cm.     Package Included:  5 x 18650 Battery Box Rechargeable Battery Holder