Transmitter Weight: Approx. 11 g Transmitter Dimensions: 28.58 × 28.04 × 13.52 mm Battery Life: Approx. 11.5 hours per TX (up to 48 hours total with the charging case) Transmission Range: Up to 400 meters (1312 ft) line-of-sight Wireless Protocol: GFSK 2Mbps / Bluetooth 5.3