Feature: 1. BETTER EFFECT: Transmitter RF circuits and sound circuits are re designed to increase the chip, the human voice singing teeth voice is reduced. The effect is better. 2. ADDITION OF 3.5 INPUTS: Transmitter increased 3.5 input port, can be connected to the live sound card. As a net red live ear return. 3. WITH LCD SCREEN: Wireless monitor system with LCD screen, display frequency, channel and battery level. 36 frequency points, 25MHz bandwidth, more stable transmission. 4. STEREO TRANSMITTER RECEIVER: Stereo transmitter and stereo receiver, stereo means you hear the fullest, most accurate monitoring sound. 5. 36 SELECTABLE FREQUENCIES: Each system features 36 selectable frequencies, and each band accommodates up to 3 compatible systems at the same time without interfering with each other. Specification: Item Type: Stereo Wireless Monitor System Material: Iron Shell Product Model: ANLEON S2T Frequency Range: 670-680Mhz Frequency Response: 20Hz-18KHz Transmitter Battery: 2 x AA 1.5V (Not Included) Use Distance: Indoor 50m / 164ft, Outdoor More Than 100m / 328.1ft. Package List: 1 x Transmitter1 x Receiver1 x Earphone4 x Ear Cap1 x Antenna1 x Power Adapter1 x Instruction Manual