Btuty in Ear Monitor System Wireless in Ear Monitor System Earphone Monitor Transmission System Rechargeable Receiver Wireless I

Specifications: Material: ABS Sample rate : 24bit / 48KHz lossless digital transmission sound quality Wireless Band: 2.4GHz Delay: < 12ms Ran-ge: 30 meters outdoor or 15 meters wall distance Lithium Battery Capacity: receiver 550mAh Charging Device: USB charging cable Signal-to-noise Ratio: -98dB Dynamic: >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 * 1.57inPacking List: 1 * Receiver 1 * Charging Cable 2 * Audio Cable 1 * Manual (English)