Spesifikasi : Frequency: 2.4GHz Oscillator Type: Gaussian Frequency-Shift Keying (GFSK) RF Frequency Band: 2400 to 2483.5 MHz RF Output Power: 10 mW Signal to Noise Ratio: ≥70dB Voice Delay: ≤6ms Reference Audio Input Level: -30 to -42dBv (Microphone Input, 0 dB Attenuation) Audio Gain Control: 11dB, 18dB, 25dB Plug-In Power: Yes, 1V Distortion: ≤0.1% Digital Resolution: 24-bit / 48kHz Frequency Response: 20Hz to 16kHz Max Operating Range: 98.4’ (30m) with Obstacles, 164’ (50m) in Open Area Max Number of Simultaneous Systems: 18 (up to 36 Microphones) Antenna: Built-in 1/4λ Wire Antenna Buttons: On / Off / Pair, Volume Up, Volume Down Battery: Built-in Li-ion 3.7V / 400mAh Approx. Battery Life: 5 hours Charging Connector: USB Type-C (1.5 hours to be fully charged) Input: 1/8'' (3.5mm) Microphone Input 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 Mounting Clip: Built-In Operating Temperature: 0℃ to 50℃ Storage Temperature: -20℃ to +50℃ Dimensions: 2.5 x 1.7 x .65” (63 x 43 x 16.5mm) Weight: 1.2 oz (34g) >>Receiver Specifications: Frequency: 2.4GHz Oscillator type: Gaussian Frequency-Shift Keying (GFSK) RF Frequency Band: 2400 to 2483.5 MHz Signal to Noise Ratio: ≥70dB Voice Delay: ≤6ms Distortion: ≤0.1% Digital Resolution: 24-bit / 48kHz Frequency Response: 20Hz to 16kHz Max Operating Range: 98.4’ (30m) with Obstacles, 164’ (50m) in Open Area Antenna: Built-in 1/4λ Wire Antenna Connector: USB-C Male Button: Pairing Pinhole Button Indicator: 1 LED, Blue. Flashing Quickly: Paring, Flashing: Not Paired