1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 2.4G 4CH compact wireless portable AV receiver; 4 Channels auto switching mode; 4 channels recording; 1/3" CMOS, 380TVL; 30-50m unblocked transmitting range; MP3 MP4 player, picture browse supportable; Wired AV recording and TV out function supportable; OTG and 2.0 high-speed USB interface supportable; Support connection with monitors; Built-in high capacity rechargeable polymer lithium battery, 4 hour continuous play time;