Top 5 Best doorbell double for sale 2016

1. Magicfly Portable Wireless Doorbell Chime Kit 1000-feet Range 52 Melodies, No Batteries Required for Receiver(1 Push Remote Button+2 Door Chime) Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.9 out of 10
Tunes: different ring tones, over 52 (16 chord) elegant melodies Volume: 4 levels Volume adjustable from 25db to 110db

2. Portable Wireless Doorbell Chime Kit Operating at Over 1000 Feet Range 52 Selectable Melodies, No Batteries Required for Receiver - Black / White (Click Link to Check Price on Amazon)
Editor's Rating : 9.3 out of 10
A classic square design with combination of black and white color. Our 25 years of Research & development experience in the area of wireless doorbell with CE, FCC & ROHS certifications are enough to win your trust.Premium quality

3. STARPOINT Expandable Wireless Multi-Unit Long Range Doorbell Alert System, Base Starter Kit includes 2 Plugin Receivers and 2 Remote Button Transmitter, Model LCBase, White (Click Link to Check Price on Amazon)
Editor's Rating : 9.8 out of 10
2016 STARPOINT MODEL - UPGRADED doorbell chimes & ringtones. NOTE: THIS PRODUCT PART IS ONLY COMPATIBLE AND PAIR-ABLE WITH OTHER STARPOINT PARTS - LOOK FOR THE STAR SYMBOL FOR COMPATIBILITY.The STARPOINT L Series is a CONFIGURABLE and EXPANDABLE doorbell system that can EASILY ADD on 20+ more extra receivers, transmitter buttons, motion sensors and door sensors. Custom build your own system that fits for your needs. Easy to use pair-able random generated frequency code technology allows you to mix and match L Series components easily with one or multiple receivers.

4. Wireless Doorbell, Anko Reaches 1000 Feet Distance Portable Operating Radio Range with 36 Chime Kit (2 Push Remote Button Transmitter+2 Receiver ,No Batteries Required for Receiver ,White) (Click Link to Check Price on Amazon)
Editor's Rating : 9.4 out of 10
Our Original Classic doorbell. A stylish modern design in classic white!Operating range of over 500 feet. (reaches 1000 feet in open area). Remote transmitter button is rated weatherproof and acceptable for outdoor use.

5. Housmile Wireless Doorbell, Door Chime Operating at 500 feet with 1 Transmitter and 2 Receivers, CD Quality Sound,52 Selectable Music,Black (Click Link to Check Price on Amazon)
Editor's Rating : 9.7 out of 10
UNIQUE WATERPROOF DESIGN - Operating range of over 500 feet. (1000 feet in open area). Remote transmitter button is weatherproof and acceptable for outdoor useHIGH-PERFORMANCE - ABS material saving more power, ensuring the longer service life.