Transmitter & Receiver Features: Compact size with lossless professional sound quality, low noise, and low latency. 2.4GHz wireless transmission band with 24 bit/48KHz sample rate. Effective transmission range of up to 30 meters. Switch easily between mono and stereo to suit different devices. Equipped with a built-in rechargeable lithium-ion battery, charged conveniently via USB. Supports operation of up to 5 sets of equipment simultaneously. Functions as a collar-clip wireless microphone and can be used as a pocket-strapped transmitter. Specifications: Model: SWS10 / WP-10 (Optional) SWS10: Receiver without Volume control button WP-10: Receiver with Volume control buttons Material: ABS Sample Rate: 24bit / 48KHz lossless digital transmission sound quality Wireless Band: 2.4GHz Delay: < 12ms Range: 30 meters outdoor or 15 meters through walls 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: 60 x 45 x 20mm / 2.36 x 1.77 x 0.79in Item Weight: 100g / 3.53oz Package Weight: 220g / 7.76oz Package Size: 13.2 x 10.8 x 6.5cm / 5.20 x 4.25 x 2.56in Packing List: 1 x Transmitter 2 x Receiver 1 x Charging Cable 2 x Audio Cable 1 x Manual (English)