You are downloading the Instant Buttons XAP file v18.104.22.168 for Windows Phone. Instant Buttons is a free and useful Music app: Instant Buttons is an original soundboard, it's a unique collection of sounds. This application will offer to you many funny and quickly sounds that ... You can now download the offline XAP file to install & try it.
Download Locations for Instant Buttons 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Instant Buttons XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.