Developed especially for the Connoisseur the SensaVox has stacks of features and un-rivaled finely controllable POWER!! This unit has two independently controllable outputs allowing you to use two bi-polar accessories at the same time or you can share with your partner. Built-in programs, Audio input features, 7-segment LED Displays, Digital Power Control, Boost Feature. Key features include: High Intensity "Truly Isolated" Dual Channel Output, Optimal Multi-Turn Digital Power Control, Output Boost Feature, Economy Power Saving Mode for Prolonged Battery Life, Multiple Modifiable Stimulation Programs, SensaVox Audio Input, Safety Features, Low Battery Warning, and Durable Control Panel. Items are backed by a 12 month warranty. When you buy an EM140 you can also extend the warranty to 3 years by registering your purchase with the vendor (within 4 weeks of purchase). No outside label (postage only) Discreet packaging Private No logos Due to health concerns, sanitary reasons and the nature of our products, we are unable to accept used and opened products. If the item or items you received are defective, please notify us within 14 days. We will send you a brand new replacement and provide a return shipping label for the defective unit.. Returns that are unopened, unused and items with manufacturing defects are accepted but MUST be mailed back in its ORIGINAL (FACTORY) PACKAGING. The merchandise returned must be in the original packaging and unused. The buyer pays for return shipping on Unopened items Postage on returns unopened buyer pays.. We will be responsible for the shipping on the replacement. Buyer should contact us within 30 Days after receiving the item. Refund given as Money Back or Exchange Return shipping will be paid by the buyer . Thank you for your business. If you have any questions regarding your order or you are not satisfied with your purchase, please contact us before leaving feedback so we may resolve your concern. Thank you for your business.