- 32 programmable buttons : Each of ESM32 supports 32 programmable buttons and all of them are three-colors LEDs.
- Various functions : Supports BLF, Speed-dial, Call transfer and DND.
- Powered by host phone : You do not need to attach to any other power adapter; all of ESM32s are powered by host phone.
- Applies to many kinds of SayHi IP phones : Applies to Escene ES6xx, ES4xx, DS6xx, DS4xx IP phones
- Daisy-chain 6 modules for 192 programmable Keys