Based on this product's specifications, here are some alternatives and similar models
Speakerphone POLY Sync 60 Mobile phone/PC Black Silver 30m range
Summary description:
The POLY Sync 60 Speakerphone is designed for mobile and PC use, featuring both wired and wireless connectivity. With a maximum operating distance of 30 meters, it offers dynamic sound quality. The bidirectional microphone operates within a frequency range of 100 to 6700 Hz, ensuring clear communication. Powered by a lithium-ion battery, it is portable and convenient for various settings.