https://electronics.woot.com/offers/new-sonic-bomb-dual-extra-loud-alarm-clock-with-bed-shaker?cjd 113dB Sonic Bomb Dual Extra Loud Alarm Clock with Bed Shaker (SBB500ss) on sale for $19.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.