<p><strong>Transmitter Specifications:</strong><br />Frequency: 2.4GHz<br />Oscillator Type: Gaussian Frequency-Shift Keying (GFSK)<br />RF Frequency Band: 2400 to 2483.5 MHz<br />RF Output Power: 10 mW<br />Signal to Noise Ratio: &ge;70dB<br />Voice Delay: &le;6ms<br />Reference Audio Input Level: -30 to -42dBv (Microphone Input, 0 dB Attenuation)<br />Audio Gain Control: 11dB, 18dB, 25dB<br />Plug-In Power: Yes, 1V<br />Distortion: &le;0.1%<br />Digital Resolution: 24-bit / 48kHz<br />Frequency Response: 20Hz to 16kHz<br />Max Operating Range: 98.4&rsquo; (30m) with Obstacles, 164&rsquo; (50m) in Open Area<br />Max Number of Simultaneous Systems: 18 (up to 36 Microphones)<br />Antenna: Built-in 1/4&lambda; Wire Antenna<br />Buttons: On / Off / Pair, Volume Up, Volume Down<br />Battery: Built-in Li-ion 3.7V / 400mAh<br />Approx. Battery Life: 5 hours<br />Charging Connector: USB Type-C (1.5 hours to be fully charged)<br />Input: 1/8'' (3.5mm) Microphone Input<br />Indicators: 4 x Blue LEDs: Indicates Power and Audio Level, 1 x Red LED: Indicates Low Battery Level, 1 x Green LED: Flashing when Charging / Off when Charge Finished<br />Microphone: Built-In Pressure Operated Electret Condenser<br />Microphone Pickup Pattern: Omnidirectional (Built-In Microphone and External Lavalier)<br />Microphone Frequency Range: 50Hz-18KHz (Built-In Microphone and External Lavalier)<br />Microphone Equivalent Noise Level: &gt;58dB (Built-In Microphone and External Lavalier)<br />Maximum SPL: 120dB (Built-In Microphone), 110dB (External Lavalier)<br />Mounting Clip: Built-In<br />Operating Temperature: 0℃ to 50℃<br />Storage Temperature: -20℃ to +50℃<br />Dimensions: 2.5 x 1.7 x .65&rdquo; (63 x 43 x 16.5mm)<br />Weight: 1.2 oz (34g)<br /><br /><strong>Receiver Specifications:</strong><br />Frequency: 2.4GHz<br />Oscillator type: Gaussian Frequency-Shift Keying (GFSK)<br />RF Frequency Band: 2400 to 2483.5 MHz<br />Signal to Noise Ratio: &ge;70dB<br />Voice Delay: &le;6ms<br />Distortion: &le;0.1%<br />Digital Resolution: 24-bit / 48kHz<br />Frequency Response: 20Hz to 16kHz<br />Max Operating Range: 98.4&rsquo; (30m) with Obstacles, 164&rsquo; (50m) in Open Area<br />Antenna: Built-in 1/4&lambda; Wire Antenna<br />Connector: MFi Certified Lighting Apple Lightning Male<br />Button: Pairing Pinhole Button<br />Indicator: 1 LED, Blue. Flashing Quickly: Paring, Flashing: Not Paired with Any TX, Solid Blue: Paired with TX<br />Operating temperature: 0℃ to 50℃<br />Storage temperature: -20℃ to +50℃<br />Dimensions: 3 x 0.65 x 0.43&rdquo; (76 x 16.5 x 11mm)<br />Weight: 0.35 oz (10g)</p>