Specification:

• Operating range: 15 meters (max), without signal disturbance and no direction limit.
• Frequency range: 2.403GHZ ~ 2.480GHZ
• Operational voltage: 3.3V
• Charge Voltage: 4.4V ~ 5.25V
• Modulation: GFSK
• Channel: 78 channels
• TX Power: less than +5dBm
• Transmission rate: 1M bit/sec
• Frequency tolerance: +/-30ppm
• Power consumption: 55mA(on), 1mA(sleep)
• Color: White + Black
• Battery Type: Built-in lithium-ion battery
• Item size: 15 * 10 * 2cm
• Item weight: 107g

Package including:

• 1 * Wireless keyboard
• 1 * Wireless receiver
• 1 * Charging data cable
• 1 * User manual