Green Lion Wireless Presenter With Retractable Pointer

Specification Material: ABS + Stainless Steel Battery: 180mAh Power: <5mW Voltage: 3.3-4.2V RF Frequency: 2.4GHz Working Distance: <20m Laser Distance: <100m Laser Wave: 650nm Retractable Pointer: 42cm Charging Port: Type-C Charging Time: 2 Hours Working Time: 6-8 Hours Compatibility: Windows, Android, Linux Features 7 Programmable Keys Countdown Reminder Capacitive Pen Tip Real Time Power Display Built-in 2.4GHz Receiver