Japanese company Matsushita has released a wake-up light that gradually brightens at 30 minutes before a set time. That in itself is nothing new, but the lamp also makes bird-chirping sounds two minutes prior to the alarm time, rendering horrific, shrieking demon birds in your dreams. If that "chirp chirp" is too cheesy for you, you can opt for a slightly less cheeky version and set it to wake you with a "melody that blends the sounds of a music box and tinkling glass."
The noise is emitted at a frequency of 3,000 to 4,000Hz, which, according to the company, is specially calibtrated to awaken the brain. -RD
Wake-up Light [Nikkei]