... receiver build in a big rechargeable li-batteryl 4-channel operation allows multiple (1-4) camera system l receiver for audio monitoringl ... *L*H)75*35*130 mmWeight630gPacking List1. 2.4GHZ Wireless Camera*12. 2.5inch TFT Baby monitor*13. Adapter*24. AV Cable*1 2.4G Wireless Baby Monitor,Baby Monitor,2.4G Wireless Baby Monitor,baby camera,Wireless Baby Monitor