Choose your product type: All Hi-Fi Music Player Pro recording Agent Products Mjölnir User Manual & Quick Start Guide Mjölnir User Manual Firmware Mjölnir Firmware Mjölnir_AP_1.4.0.6 Update time:2024-01-3 File size:31.1MB Mjölnir Firmware Mjölnir_AP_1.4.0.5 Update time:2023-09-27 File size:31.1MB Mjölnir Firmware Mjölnir_AP_1.4.0.4 Update time:2023-09-15 File size:31.1MB