Aroma ARC1 Transmitter Receiver Compact size 5.8G wireless microphone system, XLR connection, easy to useLess than 5.6ms ultra-low latency, clear and stable signal transmission.24bit/48KHz high resolution audio quality.You can select 4 channels, 4 different frequencies. 4 units can be use with 4 microphones in the same room.Built-in rechargeable lithium battery, which can be recharged easily via the included USB cable.Brand: AromaModel: ARC1Operating Band: 5.8GhzSample Rate: 24bit/48KHzLatency: < 5.6msSNT: 140dBChannel: 4Range: 20-35MPower Supply: Built-in Lithium BatteryWorking Time: 4 hoursCharging Time: below 2 hoursIncluding:1 * Transmitter1 * Receiver1 * USB Charging Cable1 * Users' Manual AROMA ARG-05 Transmitter Receiver Features: Wireless audio transmission system designed for guitars, basses and other instruments with 6.35mm audio output jack. 5.725-5.820GHz digital high fidelity coding technology, high quality transmission without compression or distortion. Less than 6ms latency, no lag or no signal loss; and effective transmission distance is up to 35M/115f in the open air. 4 built-in channels with 4 different color indicators for each channel. 120 rotatable plugs design, compatible with different audio jack position. Built-in rechargeable lithium battery, and comes with a USB cable for convenient recharging. Specifications: Brand: AROMA Model: ARG-05 Sample Range: 24bit/ 48KHz Latency: less than 6ms Transmission Range: max. 35 meters/ 115 feet(no obstacles) Signal Noise Ratio: 140dB Power Supply: Built-in Rechargeable Lithium Battery(3.7V 450mAh) Charging: 5V Micro USB port Item Size: approx. 8.3 * 3.5 * 2.8cm/ 3.3 * 1.4 * 1.1in& 65288;folded& 65289; Item Weight: 35g / 1.2oz (for each) Package Size: 24.5 * 8.2 * 4cm / 9.6 * 3.2 * 1.6in Package Weight: 160g/ 5.6oz Package List: 1 * Transmitter 1 * Receiver 1 * USB Charging Cable 1 * Storage Bag 1 * Users' Manual(English & Chinese) Aroma ARU-03 Transmitter Receiver Features: Wireless audio transmission system powered by built-in rechargeable lithium batteries, are suitable for guitar, bass and other instruments with 6.35mm audio output jack. Transmitter and receiver with 6.35mm mono audio plug, 60 rotatable, compatible for different audio jack position. Transmitter and receiver are matched automatically when power on, one button for all control, easy and convenient to use. UHF frequency and FM high fidelity coding technology, delay time less than 5ms, without compression or distortion, and max. 20M transmission range. 5 built-in UHF channels indicated by different color LED light: 863.7MHz-- red, 866.7MHz-- green, 869.7MHz-- blue, 872.7MHz-- yellow(red + green), 876.