Our Shipping Conditions: Attention: The goods will be shipped from UK Delivery time: 2 to 4 working days Support 60 days return policy Reply within 24 hours Description NO PROGRAMMING: The problem with other is they have high frequency feedback and aren't user friendly. Because our product were made with ergonomically designed ear tubes and a digital processing volume control and memory. SPECS THAT ARE BETTER: This digital ear device has different listening modes, max sound alarm, active noise reduction, and a digital volume controller with memory function which means that you'll have total user control. .