Description: On-board SYN480R monolithic wireless ASK/OOK receiver chip Module receiving frequency: 433MHz Module receiving sensitivity: -107dBm Module transmission rate: 2.5kbps (SWP), 10kbps (FIXED) Module power supply voltage: 3.3-5.5V Size: approx. 17.2 x 11.8mm Package Includes: 1 Piece SYN480R Wireless Receiver Module Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !