So, I live on the second floor and the downstairs door is always locked. People want to drop by but it means they have to call my cell phone and, let's just say, I can get lazy about picking up the phone. Oops. So it seems that it might be time to look into a wireless doorbell. Turns out a) they make them, and b) they make some pretty killer ones.
Jacob Jensen USB Cordless Doorbell:
It's got 5 different polyphonic ring tones including a knocking chime, you can download up to 3 of your own tones, plus it looks pretty sleek. Buy it
here.

Wireless Singing Bird Doorbell:
I loved this little bird when I saw it and then found out that he'll chirp a range of tunes including 'Mary Had a Little Lamb' and 'London Bridge is Falling Down' when someone is at the door. Install at your own risk! Buy it here.

Waleli GSM Doorbell (sort of wireless and by far the most complicated and it's pink!):
This doorbell calls your cell phone (wouldn't work so well for me...) allowing you to talk with the person at the door via an intercom. Then by punching the pin code into your phone, it unlocks the door. This means that not only can you let people in without having to get up, but you can let them in even if you aren't home (good for when you lock yourself out!). If you're out of town frequently and need to let the cat sitter in, this one's for you. More here.

Heath/Zenith Wireless Chime:
Just a straight up, no frills, wireless doorbell. Did I mention this one is cheap? Buy it here.

Portable Super Loud Doorbell with Two Receivers:
This one you can have chime in 2 different rooms, or you can carry one around on you (for when you're walking down the street maybe?). In case it wasn't obvious, this one is super loud and available here.
–Laure
Related post: top 10 alarm clocks
Anyone ever have trouble with crossed signals from different wireless doorbells? I get my upstairs neighbour's doorbells (the chime is different, making it distinguishable) and recently, I've been getting phantom chimes, at 4am!
Any advice?
view Michelle of Montreal's profile
We bought one of the cheapo Heath/Zenith models for occasional use (once a week in the winter months we are the drop-off point for a local CSA). Doesn't work for sh*t. This may be yet another case of "You get what you pay for".
view AngieK's profile
Hey Boomer--Here's the straight link for the JJ Chime:
http://www.silvernutmeg.com/FullProd.php?p_id=1301&PNAME=Jacob_Jensen_USB_Cordless_Doorbell
Thanks for the heads up AngieK---I guess I won't go the super cheapie route on this one!
view laure's profile
Thanks Boomer!
view laure's profile
The Jensen Doorbell is available at MoMa's online store.
http://www.momastore.org/museum/moma/ProductDisplay_Cordless%20Doorbell_10451_10001_21501
view phaedrus's profile