Features: Small size yet has lossless professional sound quality, low noise, low latency, good resolution. 2.4GHz wireless transmission band, 24 bit/48KHz sample rate. 30 meters long distance effective transmission distance. One key to switch mono/stereo, meet the needs of your different device. Built-in rechargeable lithium-ion battery that can be conveniently charged by USB. 5 sets of equipment can be supported to work at the same time. The transmitter acts as a collar-clip wireless microphone and can be used as a pocket-strapped transmitter. Specifications: Material: ABS Sample rate : 24bit / 48KHz lossless digital transmission sound quality Wireless Band: 2.4GHz Delay: 105dB Frequency Response: 20 to 20KHz, and1dB / -3dB Item Size: 54 x 45 x 13mm / 2.13 x 1.77 x 0.51in Item Weight: 31g / 3.64oz Package Weight: 89g / 5.08oz Package Size: 7.4 x 6 x 3.8ccm / 5.12 x 3.15 x 1.57in Packing List: 1 x Transmitter 1 x Charging Cable 1 x Audio Cable 1 x Manual (English) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.