Palm size monitor for mobility light,small and easy to carry monitor with earphone plug Features: * Palm size monitor for mobility * Built-in microphone for audio monitoring * Long operation range: up to 100M clear line-of-sight or 30M through obstructions (walls/ceilings) * remote message transmission* light & small,easy to carryCamera specification:Frequency:1CH:49.834MHz,2CH:49.890MHz,Power: ...