This lock have tow model tongue and  5  colors,you can choose:

Product features:
Jane and not simple
Compact, core intelligence
Two unlock password, mechanical key mode
Standard type single tongue, office, family indoor installation
Standard type tongue, out of the door locked her hand, safe and reliable
Zinc alloy die casting a integrated super ability to resist damage
Set arbitrary password, have password leakage prevention function

Technical parameters:
working voltage: 6V ;
Static power: 50 microamps or less ;
Dynamic power consumption: 120 ma or less ;
Battery life (standby) : 2 years ;
Operating ambient temperature: - 20 ℃ ~ 60 ℃ ;
Using the environment humidity: RH (45-85) % ;

About us:

      K-Lin Yuan Technology Co., Limited is a professional manufacturing and trading company. We focus on Intelligent Lock Series, hunting camera,security products, sports camera, electronics, and Nihgt Vision camera etc. 
       Insisting on pursuing advanced technology and good service, we have won a great support from all over the world. Our company goal is to provide good quality, reasonable price and excellent service to all customers. Thus, we have established long-term, stable and good business relationships with many wholesalers and distributors home and abroad, such as Australia, Germany, Italy, Russia, Sweden, Singapore, South Korea, Saudi Arabia, Taiwan, UK and the United States. 
      In recent years, we invest heavily in technology and personnel training to improve our competitiveness and meet the needs from customers. 
      Now, we are looking forward to greater cooperation with overseas customers based on the equality and mutual benefits. We do wish K-Lin Yuan Technology Co., Limited become your best choice. You can check our website or ask our CS for more detail information.