This is the Spektrum DX3.0 DSM 3-Channel Radio with SR300 - no Servo

Features

• Now compatible with the MR3000 3-channel marine receiver and DSM2 surface receivers, in addition to DSM surface receivers
• Built-in 2.4GHz DSM technology
• 3-channel DSM receiver (1)
• Easy-to-read LCD graphics display
• Now features ModelMatch model recognition technology
• 4-model memory
• 3-Character Model Naming
• Electronic digital trim levers for throttle and steering
• Throttle deadband
• Normal and Fast modes
• Servo endpoint adjustments
• Sub Trims
• Servo Reversing
• Steering Dual Rate

• Lap Timer

Overview
Spektrum's no-pins, no-interference, no-glitch DSM 2.4GHz technology ignited a revolution among high-end racers. Starting with RF modules, we made it possible to adapt existing pro-style transmitters to this breakthrough technology for dramatically improved performance.
With the Spektrum DX3.0, you'll have a 3-channel system loaded with great programming features combined with built-in, ultra-fast DSM modulation. It couldn't be easier.
You'll never have to select - or wait for - a channel again. Plus, glitching from motors and metal-to-metal "noise" will be a thing of the past.
In addition to DSM surface receivers, the DX3.0 is now compatible with the Spektrum marine receiver (MR3000) for use in boating applications and DSM2 surface receivers.  If you're unsure of the compatibility of your radio, look for the marine and DSM2 logo on the back of your transmitter.

Tech Notes
The DX3.0 is compatible with the Spektrum telemetry system. An SR3300T receiver (SPMSR3300T) or an SR3001 receiver (SPM1205) and telemetry module (SPM1325), plus the hand held unit (SPM1320) and the appropriate sensors are required. Please see the optional accessories for a complete listing of telemetry components.

Specifications
# of Channels: 3
Modulation: DSM (Compatible with Marine and DSM2 surface receivers too)
Band: 2.4GHz
Servos: None
Receiver: SR300 3-channel DSM sport surface reciever
Model Memory: 4
Transmitter (Tx) Battery Type: 8 AA Alkaline (not included)