TechPowerUp reviewed the VAXEE E1 Wireless
VAXEE E1 Wireless Review
Equipped with PixArt's latest PAW3950 sensor and weighing 60 g, the right-handed ergonomic E1 essentially is VAXEE's take on an updated EC2. 4000 Hz wireless polling is supported, and VAXEE cites up to 110 hours of battery life.