ink 900 TX Transmitters Transmission Type: 2.4GHz Digital Frequency Operating Range: Up to 656' (200m) *Without Obstacles* RF Output Power: 10mW Built-in Microphone Capsule: 4mm Built-in Microphone Polar Pattern: Omnidirectional Frequency Response 20Hz to 20KHz Built-in Microphone Maximum SPL: 100dB (1kHz @ 1m) dBu Built-in Microphone Sensitivity: -39dB±2dB Lavalier Microphone Maximum SPL: 120dB Lavalier Microphone Sensitivity: -40dB±2dB Reference Audio Input Level: -20dBv Input Connector: 3.5mm Mic In / Line In (Mic with Plug-in-Power) Digital Signal Resolution: 24bit / 48kHz Signal-to-Noise Ratio: ≥80dB Voice Delay: ≤6.8ms Distortion: ≤0.1% Power Requirements: Built-in Li-ion Battery, USB-C or Charging Contact Battery Life: Approximately 6-hours (400mAh) Antenna: PIFA Antenna High-contrast TFT LCD Screen Resolution: 0.96” 80RGB x 160DOTS Other Functions: Auto Brightness Adjust & Tactile Mute Function Weight: 1.19oz (33.6g) Dimensions: 1.13 x 1.13 x 0.65” (43.5 × 43.5 × 16.4mm) Operating Temperatures: 0° to 122°F (0°C to 50°C) Storage Temperatures: -4° to 131°F (–20°C to +55°C) DK3G Lavaliers Acoustic Principle: Electret Condenser Polar Pattern: Omnidirectional Sensitivity: -40±2dB (1kHz 0dB=1V/Pa) Frequency Range: 20Hz to 18kHz Signal-to-Noise Ratio: More than 58dB Operating Temperature: -20°C - 60°C Connector: Gold-Plated 3.5mm Cable Length: 65.87” (167cm) Blink 900 RX Receiver Reception Type: 2.4GHz Digital Frequency Operating Range: Up to 656' (200m) *Without Obstacles* Line Output Connector: 3.5mm Output Level: -18dBV Output Mode Types: Mono / Stereo Digital Signal Resolution: 24bit / 48kHz Signal-to-Noise Ratio: ≥80dB Voice Delay: ≤6.8ms Distortion: ≤0.1% Headphone Output Connector: 3.5mm Power Requirements: Built-in Li-ion Battery, Micro USB DC 5V or Charging Contact Battery Life: Approximately 6-hours (450mAh) *Using 2x Transmitters* Antenna: PIFA Antenna High-contrast TFT LCD Screen Resolution: 0.96” 80RGB x 160DOTS Weight: 1.25oz (35.3g) Dimensions: 1.13 x 1.13 x 0.65” (43.5 × 43.5 × 16.4mm) Operating Temperatures: 0° to 122°F (0°C to 50°C) Storage Temperatures: -4° to 131°F (–20°C to +55°C) Blink 900 B2 Charging Case Power Requirements: Powered by USB-C port (5V/1.5A) Power Capacity: 4500mAh Box's Charging Time: <4-hours Weight: 9.81oz (278g) Dimensions: 7.32 x 3.43 x 2” (186 x 87.2 x 51mm) Operating Temperatures: 0° to 122°F (0°C to 50°C) Storage Temperatures: -4° to 131°F (–20°C to +55°C)