TechPowerUp posted a review on the VAXEE Zygen NP-01 Wireless (4K)
VAXEE Zygen NP-01 Wireless (4K) Review
At 72 g, the NP-01 Wireless weighs the same as the original wired NP-01. It comes with PixArt's PAW3395 sensor, Huano switches for the main buttons, and up to 100 hours of battery life. In addition, the NP-01 Wireless supports true 4000 Hz polling, and configuration is possible entirely on-device.
