Wireless 2.4Ghz receiver Specs: 

RF RECEIVER
  Frequency 2413,2432,2451,2470 MHz
  Sub Carrier 5.5 MHz
  Video Output 1Vp-p Composite Video
  Audio Output 2Vp-p Max
  4CH & Manual & Auto Switcher .
  POWER:Li-Ion Rechargeable Battery and DC 5 V
  using compatible Nokia cell phone battery BL-5C
  Low Power & channel LED Display

• Ultra portable  2.4 GHz 4 Ch  Video Receiver with built in 5V rechargeable battery Li-lon
• Antenna
• Simple connection instructions
• RCA Video/ Audio connection cable
• 1 AC/DC power adapter 5VDC.
• Protective plastic case
• Comprehensive 1-Year Parts and Labor Warranty

5 Minutes to Install:

1)       Connect to power source ( switch the channel to the same channel as your transmitter (camera))

2)       Attach receiver to the TV, COMPUTER or VCR you already own

3)       Start receiving Video / Audio signal and monitor or record (it’s that easy!)