terms and conditions


Circular Science warrants the RESOTUNE product against defects in materials and workmanship for a period of three (3) years from the date of original purchase (“Warranty Period”). The guarantee is given in accordance with legal requirements.

Conditions of Use

The content of this website is property of Circular Science and protected by US law. We allow private use for educational purposes but require proper citation and notice.

Privacy Notice

We take your right to privacy and security seriously. We use your provided information only to complete your order. We do not store sensitive CC information, We do not share or sell any customer  information. We retain contact information so we can provide you with information about availability of software or hardware revisions.

Shipping and returns

Circular Science will provide a shipment confirmation via email with tracking # as available. We typically ship orders on the first Thursday following receipt of payment in full. Remittances made with personal checks or E-check may be delayed for bank clearance. The original buyer can return items in like-new condition within 30 days of receipt for a full refund of purchase price less 20% restocking charge. Items returned later than 30 days or in less than like-new condition will involve additional adjustments. Contact us for specific details.    E-Mail      The customer is responsible for the return shipment and should request a return authorization by email before shipping.

Shipping Address:  

7489 Hwy 503                                                                                                     Hickory, MS 39332    USA

Contact us for pricing information for delivery to areas outside the US. You may be subject to import duties or taxes, when packages are shipped outside the US. Additional charges for customs clearance will be your responsibility. You should contact your local customs office for further information.