LLVision 听语者 (Listener)

LLVision's Listener (听语者) launched in China on September 21, 2022 at RMB 3,999, aimed at deaf and hard-of-hearing users. It puts live speech-to-text captions on a 79g binocular array waveguide, and LLVision's own site no longer lists this SKU: it now sells only newer lines, including the 2026 Leion Hey2.

OFweek's hands-on test called the 79g frame one of the lightest wireless binocular AR glasses at the time, with graphene and aerogel cooling that avoided discomfort. It measured caption delay under 500 milliseconds and found bystanders cannot see the display, plus a keyword-alert feature that flashes the screen for a word the user set, such as their own name.

## Can you build for it No SDK, developer program or API was found for this device. It pairs only with LLVision's own consumer app, 可译 (Keyi), used to set captions and language, and it never sold outside China. A 2025 piece from the Beijing Federation for the Disabled quotes the founder admitting the next generation needed to be lighter with longer battery life.

OFweek also found real limits: boot time over 30 seconds before the interface loads, unstable offline speech recognition without internet, and competing voices in loud rooms interrupting the transcription. LLVision claims only 2 hours of battery, a fraction of the 8 hours claimed for the newer Leion Hey2, and no price outside China ever surfaced.