The New Gran 3s comes with several improvements over the regular Gran 3. The 3S features a noise reducing shock absorber & structure make this board one of the quietest boards on the market. The improved Sensor sheet improves the reliability of the board and reduces false reads. The next feature is the new segments. They re-designed the segments to make them more durable. The 3s can run on 2 AA batteries (without LED lights) so you can play it anywhere. Acoustic absorbent material in all segments deadens sound. It also registers darts that hit the outer scoring area of the board. 9 Levels of Play against the computer, play Cricket, 01 Games, Count-Up, Half It, Animal Battle (vs. Computer). Available in Blue or Green and Limited Edition White. Mounting kit NOT included. PLEASE NOTE: Any warranty or tech support issues MUST be handled through the HELP link on the Gran app, or by contacting Gran through Facebook. PER THE MANUFACTURER WE WILL NOT ACCEPT THESE BOARDS BACK FOR TECHNICAL ISSUES. Any and all technical, defect and troubleshooting issues will need to be handled directly with GRAN. [Please click here if you would like to go to the Gran Facebook page.]https://www.facebook.com/granboard.official/ You may also reach Gran via email at support@gran-darts.com Compatibility: Bluetooth: MUST have Bluetooth 5.0 to connect with GRAN BOARD. Compatible iOS: Later than iOS7 iPhone: iPhone4s or Later, iPad: iPad3 or Later, and iPod Touch: iPod Touch 5th Generation or Later Smart TV Android Compatible Android OS: Ver4.3 or Later Google: Nexus5, Nexus7 *Only 2013 Version Nexus Series or Later ASUS: MeMo Pad7 ME170C, MeMO Pad7 ME176C. Not compatible with Amazon Fire Dimensions: 22 ½" X 22 ½" x 1 5/8" Weight: 6.2 pounds CALIFORNIA PROPOSITION 65 WARNING: Cancer and Reproductive Harm - https://www.p65warnings.ca.gov