TomTop offers the Andoer AD-560II Universal On-Camera Flash for $28.99. Coupon code "AD560" drops the price to $23.99. With free shipping, that's the lowest price we could find by $6. It's compatible with most digital SLR cameras and features a tilt- and swivel-adjustable flash head, adjustable LED fill light, and wireless triggering sensor. Four AA batteries are required, not included.

Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily. This item ships from China and requires 10 to 20 business days for delivery.