`- Supports SIP-T41S/T42S/T46S/T48S/T53/T53W/T54W/T57W/T58A/VP59
- For T41S/T42S/T46S/T48S: upgrade to the version 82 or higher
- USB and 3.5mm connectivity to laptop and smart device
- Simple call management via control unit
- Integrated LED indicator and warning tone
- ActiveProtection technology safeguards users from acoustic injury
- HD Voice/Wideband speaker performance and noise cancellation
- 330° bendable boom arm for easy adjustment without breaking