Precise details:Features:2.4GHz digital frequency.RX1/TX1 is powered by lithium battery.TX1 has built-in microphone or use external tie-clip microphone.RX1 receiver can connect cameras, smartphones and Pads.Up to 25m line-of-sight operating range.Special designed for DSLR/mobile interview/vlog recording.Receiver RX-1Working frequency band：2.4GHz(2405-2478MHz)Modulation mode:GFSK digital modulation/demodulationFrequency response：50Hz – 16KHzLatency：Sampling rate：32KHz*24bitSignal to noise ratio：>90dBDynamic range：>95dBOperation distance：25m (no barriers)Power supply：Built-in 3.7V rechargeable lithium batteryBattery life：5 hoursWorking temperature:-10 ~ +55℃Material：ABSProduct size：35 x 17.2 x 62.8 mmProduct net weight：34gTransmitter TX-1Working frequency band：2.4GHz(2405-2478MHz)Modulation mode：GFSK digital modulation/demodulationTransmission power：10mWPickup pattern：Omni-directionalAudio input：Built-in mic and external collar clip micThe antenna：PIFA antennaControl：Switch, channel switch +/- buttonOperation distance：25m (no barriers)Power supply：Built-in 3.7V rechargeable lithium batteryBattery life：5 hoursWorking temperature:-10 ~ +55℃Material：ABSProduct size：35 x 17.2 x 62.8 mmProduct net weight：34gPackage Includes:1 * RX-1 Receiver1 * TX-1 Transimitter1 * Lavalier Microphone1 * TRSS Cable1 * DSLR TRS Cable1 * USB Charging Cable
