This is the Tactic TR324 2.4GHz Three Channel Receiver. FEATURES: Compatible with the Tactic TTX240 pistol grip transmitter Built-in "bind" button with red LED status indicator No crystal required Very lightweight YOU WILL RECEIVE: Tactic 2.4GHz 3 channel receiver REQUIREMENTS: Installation and connecting battery and servos SPECIFICATIONS: Channels: 3 Receiving Frequencies: 2.403 - 2.480GHz Modulation: FHSS spread spectrum Input Power Requirement: Four AA alkaline, NiCd or nimh cells (4.0- 6.0V) or can be powered through esc DIMENSIONS: 1.77 x 0.98 x 0.5" (45 x 25 x 13mm) Weight: 0.25 oz (7g) Antenna: Internal cnh 1/02/09 ir/jxs updt jxs 6/10/09 &