Third Generation MIP System Portable Door Bell kit.
 
No more batteries needed! Rechargeable and Portable this kit is very versatile with its belt clip or free-standing. 
 
It can still be used whilst being charged from any USB socket.
Complete volume control and a choice of 32 melodies, including Big Ben and halloween sounds.

Listen to the melodies (Click Here) 
 
View the manual Here
 
Available on Amazon (CLICK HERE)