Product Highlights Oscillator type: PLL Synthesized Control Oscillator Antenna: Flexible Channel group: A or B Carrier Frequency Range: 576.4 MHz-599.9 MHz (Channel group: A ) 568.6 MHz-592.1 MHz (Channel group: B ) Audio input connector: 3.5mm mini jack Signal-to-noise ratio: 80 dB Distortion: 0.8% (-60 dBV, 1 KHz input) Earphone output level: 60 mW, 32 Ohms/1KHz Audio output level: 120 mV Power supply: Two AA batteries Accessories: 3.5mm audio cable, shoe mount Dimensions: (H x W x L) 7.7” x 3.1” x 1.1”(19.6 x 8.0 x 2.9cm) Weight: 130g (4.6 oz) without batteries