Specifications:
Model: RX-481
Code: 107A4125
Number of Channels:4
Frequency: 2.4GHz FH3/FH4T Selectable Via Transmitter
Nominal Input Voltage: 4.8 to 7.4 Volts (4-6C NiCD/MH, 2S LiFe or 2S LiPo)
Weight: 0.25oz (7.1g)
Dimensions: 0.71 x 0.96 x 1.06in (18.2 x 24.4 x 27.1mm)
Input Voltage: 4.8~7.4V
Battery Fail Safe Limit: 3.5 to 5.0 Volts (FH3) / 3.5 to 7.4 Volts (FH4T)

Features:

• Built-In Internal Antenna - No More Unsightly External Antenna
• Unique compact design
• Lightweight
• High frame rate
• Failsafe
• Wide input voltage
• Compatible with Sanwa and Sanwa FH3 and FH4T Transmitters
• Extremely Low Latency and High Frame Rate Makes You Fell More Connected to Your Model
• Supports Normal, SSR and SHR Channel Response Modes (Requires Compatible Transmitter)
• Compatible with Sanwa and Sanwa SRG Digital Servo

NOTE:

• Although the reception capability of this receiver is equal to our other receivers that feature an external antenna, because the internal antenna is positioned lower in your model, the reception distance will be shorter in actual use.
• Do to the internal antenna position, this receiver is not suitable for use in an R/C boat. It should be used in R/C cars and trucks only.
• Super Response (SSR) feature only available when used with an Airtronics or Sanwa FH4T transmitter in SSR Channel Response Mode with Airtronics or Sanwa Super Response SRG digital servos.