Wireless keyboard mouse presenter combo: 1) Waterproof. 2) 2 in1 nano receiver. 3) CE, FCC, RoHS. 4) OEM. For ipad case Shenzhen 2.4g wireless multimedia keyboard 1. Detailed information of wireless keyboard for laptop: 1) Keyboard Type:2.4g wireless keyboard 2) Operation distance: 10m 3) Key numbers: 104+8 multimedia keys 4) Wireless carrier frequency: 2402MHZ-2408MHZ 5) Wireless channel: 32, ...