For example, if the color that you're removing is red, then it will also remove cherry-red, rose-red, wine-red, and similar shades of red. By default, 30% similar color tones are matched but you can change it as you see fit. To match similar color tones, enter the similarity percentage in the settings. User-friendly menu operation - Muting function - Wide range of accessories adapts the system to most of requirements - Locked-plug avoids accidental changing of settings - Transmission Range: up to 100 meters / 300 Lavalier Microphone Transducer: Back electret Condenser Polar pattern: Omni-directional Frequency Range: 35Hz ~ 18 KHz Signal / Noise: 74dB SPL Sensitivity: -30dB +/-3dB / 0dB=1V/Pa, 1 kHz Connector: 3.5mm locking mini plug Length: 1.2m (4’) Transmitter: RF output power: ≤10 mW Antenna: 1/4λ wire antenna Spurious emission: 250 nW or less Audio input connector: 3.5mm mini jack Reference audio input level: –60 dBV (MIC input, 0 dB attenuation) Reference deviation: ±5 kHz (–60 dBV, 1 kHz input) Input frequency range: 20 Hz-20 KHz Distortion: 0.5% or less Power supply: Two AA size batteries Operation time:About 6 hours Dimensions: 208(H) × 67(W) × 29(L)mm Weight: 80g without batteries System Oscillator type: PLL Synthesized Control Oscillator Carrier Frequency Range: 576.4 MHz-599.9 MHz (Transmitter: A ) 568.6 MHz-592.1 MHz (Transmitter: B ) Channels: 48 Frequency response: 40 Hz to 18 kHz (+/-3dB) Operation range: 100m (300')(without obstacle) Operating temperature: 14° F to 122° F (-10℃ to +50℃) Storage temperature: 14° F to 131° F (-10℃ to +55℃) Package Includes: Receiver x 1 Transmitter x 2 XLR Output Cable x 1 Stereo 3.This online browser program replaces any solid color and its close color tones in a Portable Network Graphics (PNG) photo or picture with transparent pixels. Product description - Digital Companding - Up to 48 Selectable channels - Dual-Channel - Up to 32 MHz of transmission bandwidth - Easy and flexible wireless synchronization between transmitter and receiver via infrared.