Of the models of 17 with 4k support, the most optimal option, new models, despite the fact that they are cheaper, completely lack headphone and bluetooth output ! So grab it while you have it, you won't regret it!
📺 ZJBOX Digital TV Converter Box for Analog HDTV Live 1080P with TV Recording & Playback, HDMI Output, Timer Setting and Digital Channel Free - ATSC Cabal Box Set Top Box
3 Review
📺 UBISHENG Digital TV Converter Box with Antenna - 1080P ATSC Converter Indoor for HDTV, PVR Recording & Playback, HDMI Output, Timer Setting, LED Set Top Box with Amplifier, Coax Cable - Compatible with All TVs
3 Review
📺 UBISHENG U-003 ATSC Digital Converter Box - Ultimate Set Top Box/TV Converter for 1080P HDTV with HDMI Cable, TV Tuner Functionality, Time Shift Capability, EPG, TV Recording and Playback, USB Media Player, Timer
3 Review
IVIEW-3500STB III: Advanced ATSC Digital Converter Box with Recording, Media Player, and HDMI
3 Review