Why the belt-pack could not be heard by the base station? Hollyland Tech December 21, 2020 03:27 Updated Check if the belt-pack’s OLCD shows MUTE. The belt-pack is on MUTE status by default after powering on. Long-press the side button of the belt-pack to TALK status. Check if the base station’s volume is too low. Check if the base station has muted all belt-packs. Call the base station by long-pressing the belt-pack’s side button to request for unlocking the MUTE status. Related articles how long does the belt-pack work? how to prolong the use time? Why the volume of the headset is still low after increasing the mic gain and adjusting the application? How to change the ID for a belt-pack? User Manual Lark 150 Firmware Upgrade Tutorial Comments 0 comments Article is closed for comments.