2 Reviews (100% Positive) Underdog Rentals • 1 month ago. Underdog Rentals thank Christopher Eittinger for renting out the C1 Pros headsets from us and coordinating pick-up & drop-off to be as seamless and effortless as possible. We definitely will look out for future rentals from him. Thank you, Chris! See More Owns Hollyland Solidcoms C1 8 Headsets Underdog Rentals • 6 months ago. Everything went smoothly and communication was great! See More Owns Hollyland Solidcoms C1 8 Headsets Get $20 off your first rental Join The Camera Sharing Community