I'm selling this because the app for the cycling computer I recently bought is difficult to use. I had planned to buy and use a Karoo that I had used before, but I no longer need it. I purchased it in December 2025, and I only applied a glass film and set it up; I haven't taken it outside. I also bought a generic silicone case to use with it, but I won't be using that either, so I'll include it. All of the Karoo accessories are unused. I'd like to pass it on to someone who will use it effectively, so I look forward to hearing from anyone who is interested. A compact GPS bike computer equipped with solar charging. - Model Name: COROS DURA - Function: Solar GPS bike computer - Button Arrangement: Multiple buttons - Mounting Method: Holes for mounting - Design: Compact and durable design Thank you for looking.