According to their website(1), the bolt is BLE, and the unifying receiver used a proprietary 2.4GHz radio signal. (1) https://support.logi.com/hc/en-us/article

According to their website(1), the bolt is BLE, and the unifying receiver used a proprietary 2.4GHz radio signal. (1) https://support.logi.com/hc/en-us/articles/1500012483162-What-is-the-difference-between-Bolt-and-Unifying-receivers https://support.logi.com/hc/en-us/articles/1500012483162-Wha...