Ailihen via Amazon offers its Ailihen Kids' Volume Limiting Headphones in several colors (Turquoise pictured) for $19.98. Coupon code "WZC7UQYF" drops it to $12.99. Plus, Prime members bag free shipping. That's $7 off list and the lowest price we could find, although we saw it for a buck less in November. They feature a microphone, SharePort (so you can connect other headsets), and a volume limit of 93 dB. Deal ends January 31.