M-VAVE SWS10 2.4GHz Wireless Earphone Monitor Transmission System Rechargeable Transmitter & Receiver 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: < 12ms Range: 30 meters outdoor or 15 meters wall distance Lithium Battery Capacity: transmitter 780mAh , receiver 550mAh Charging Device: USB charging cable Signal-to-noise Ratio: -98dB Dynamic Range: >105dB Frequency Response: 20 to 20KHz, +1dB / -3dB Item Size: 54 * 45 * 13mm / 2.13 * 1.77 * 0.51in  Item Weight: 103g / 3.64oz Package Weight: 144g / 5.08oz Package Size: 13 * 8 * 4cm / 5.12 * 3.15 * 1.57in Packing List: 1 * Transmitter 1 * Receiver 1 * Charging Cable 2 * Audio Cable 1 * Manual (English)