The Pulsar eS FS-1, developed in collaboration with VAXEE, is an ambidextrous, 59 g gaming mouse designed for competitive play. It features Pulsar's XS-1 sensor, a customized Pix Art PAW3950 with up to 32,000 CPI, and Pulsar Optical main button switches rated for 100 million actuations.

Key features include a steel alloy scroll wheel and support for 8000 Hz polling rate in both wired and wireless modes. Pulsar claims up to 160 hours of battery life. The mouse integrates fully into the Pulsar ecosystem, with configuration available through software or a web driver.

Measuring 124 mm × 64 mm × 37 mm, the eS FS-1 is partially ambidextrous due to side buttons only on the left side. It offers 5+1 buttons and uses a WCH microcontroller and Nordic nRF52840 for wireless connectivity. The Pulsar eS FS-1 is priced at $179.95 and comes with a two-year warranty.