Loud alarm clocks are favored by the hard of hearing and by the hard to wake up. In today's rat race of life punctuality is a must and without it one may find it hard to keep a job or even a dinner date! A loud alarm clock enables its user to maintain a punctual lifestyle, but just how loud are these devices really? The loudest device in the market is actually made by a company right here in the UK called Geemarc. The Sonic Bomb SBB500SS features a turbo charged extra loud alarm of up to 113 dB. Just to put this amplification into perspective, here are a few sounds near this level. - A normal conversion between two people will not exceed 50 dB in most cases - Standing at a busy road junction will subject your hearing to 80 dB - Petrol powered lawnmower has a typical noise level of 90 dB - Jack hammer fully working at one meter away distance has a noise level of 100 db - Boeing 707 just before landing has a noise level of 106 dB - Aircraft taking off from an aircraft carrier at 50ft distance has a noise level of 130 dB So as you can see from these examples, it really is loud. In addition to the amplified sound, loud alarm clocks will often include other helpful features such as flashing lights, vibration in the shape of an under pillow pad and other useful options. at HearingDirect.com the range includes products by Geemarc and Amplicom giving you plenty of choice both in terms of design and budget.