M-VAVE WP-10 2.4GHz Wireless Earphone Monitor Transmission System Rechargeable Transmitter & Receiver: 30 meters long distance effective transmission distance.5 sets of equipment can be supported to work at the same time.Small size yet has lossless professional sound quality, low noise, low latency, good resolution.Built-in rechargeable lithium-ion battery that can be conveniently charged by USB.2.4GHz wireless transmission band, 24 bit/48KHz sample rate.One key to switch mono/stereo, meet the needs of your different device.The transmitter acts as a collar-clip wireless microphone and can be used as a pocket-strapped transmitter. Specifications: Material: ABS Delay: < 12ms Range: 30 meters or 15 meters wall distance Package Weight: 220g / 7.76oz Item Size: 60 * 45 * 20mm / 2.36 * 1.77 * 0.79in SWS10: Receiver without Volume control button Package Size: 13.2 * 10.8 * 6.5cm / 5.20 * 4.25 * 2.56in Sample rate : 24bit / 48KHz lossless digital transmission sound quality Model: SWS10 / WP-10 (Optional) Dynamic Range: >105dB Charging Device: USB charging cable Wireless Band: 2.4GHz Item Weight: 100g / 3.53oz WP-10: Receiver has Volume control buttons Frequency Response: 20 to 20KHz, +1dB / -3dB Signal-to-noise Ratio: -98dB Lithium Battery Capacity: transmitter 780mAh, receiver 550mAh Packing List: 1 * Receiver 1 * Charging Cable 1 * 2 * Audio Cable 1 * Manual (English) One key to switch mono/stereo, meet the needs of your different device. 30 meters long distance effective transmission distance. 2.4GHz wireless transmission band, 24 bit/48KHz sample rate. Small size yet has lossless professional sound quality, low noise, low latency, good resolution. Built-in rechargeable lithium-ion battery that can be conveniently charged by USB.