This Futaba receiver has a flexible coaxial antenna thats easy to position inside a model for ideal reception. 
Requires:
- Installing in model and connecting battery and servos
- Linking to Futaba 2PL FHSS 2.4GHz transmitter
Specs:
- Power Requirement: 4.8V or 6V NiCd battery
- Size: 1.02 x 1.53 x 0.39" (26 x 39 x 10mm) excluding area where servos plug in
- Weight: 0.28oz (8g)
Used with permission, copyright 2020 Brey Corp. t/a Hobby Works