• Connection mode: Wireless Bluetooth
• Transmission range: Approximately 275in (23 ft)
• Application temperature: 10 to 40°C (50 to 104°F)
• Application humidity: 20 – 80%
• Battery: Rechargeable 550 mAh lithium-ion battery
• Charging time: 3 – 4 hours

Supported systems:
• Android 4.0 and above
• Windows XP / Vista / 7 / 8 / 10

Package includes:
• 1 x Wireless Bluetooth controller
• 1 x Wireless receiver
• 1 x Bilingual

If you are unsatisfied with your item for any reason, return it within 30 days of delivery.