Features 1.Using STM8S005 as the main control, built-in procedures, welding light pipe can be used directly. 2.Support seven clock color display (containing RGB lamp). Added USB interface power supply, more convenient to use. 3.Using imported high precision clock chip, a year less than 1 minutes error. 4.Adopts integrated IC drive program, the display is more stable and reliable. 5.Functions: 24 hour mode, time display, anti-poisoning program(refresh the monitor every 10 minutes), no alarm, no remote control, no time switch. specificationCondition: 100% Brand New_x000D_ Item Type: Digital Clock Module Board_x000D_ Model: IN14_x000D_ Material: PCB_x000D_ Color: Blue_x000D_ Quantity: 1PCS_x000D_ Input: 11V~13V1ADC Power5.5-2.1_x000D_ Power Supply: 1 x CR1220 Button Battery(Not Included)_x000D_ Weight: Approx. 40g_x000D_ Size: Approx. 187x48mm/7.36x1.89inch_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Set Time: Click "SET" key into setting time. Click "Up","Down" to set time, and click "Set" to finish._x000D_ 12/24 hour module: Click "Up" key to change_x000D_ Sleep module. Click "SET" long, while no display , into sleep module(22:00~07:00 no display. 07:00~22:00 display). Display all "0"number,out of sleep module._x000D_ Set refresh time: Click "UP" long, and click "UP"or "Down". refresh can be set 1~9 minutes,_x000D_ Set back color: Click "Down" to change color. when color refresh that means it is into change color automatic (every day change one color),or color is fixed. PackageList1 xIN14Digital Clock Module Board