Features: Experience the convenience of wireless technology with this 2.4GHz Wireless in Ear Monitor System. Seamlessly switching between earphone and microphone modes for versatiless usage. The wireless neckband headphones adopt 2.4GHz wireless transmission technology. It transmits up to about 20m/65.62ft, have quick pairing, and auto reconnecting, and low latencys. The unique neck hangings design makes it easy to wear and carry, making operation more convenient and suitable for long-terms use. Equipped with builts-in rechargeable battery, it have a longer battery life, ensuring that users will not interrupts their performances in important situations. Designs for professional like singers, hosts, and speaker, this headsets ensures exceptional sound quality for performances in studio or at conferences. Perfect for recording enthusiasts, bloggers, or video producer, this headsets delivers clear sounds for voice recording and creative work. Specifications: Material:Plastic Wireless Headsets Size:Approx.16.5x13x1.6cm/6.5x5.12x0.63inch Transmitters Size:Approx.17x1.7x1.7cm/6.69x0.67in Frequency Response:60hz-15khz Directional:Omni Directional Bluetooth-compatible5.3/2.4G Wireless Modes; Transmission Ranges:Approx.15m-20m/49.21ft-65.62ft Option Type:1xWireless Headsets and 1xTransmitter;2xWireless Headsets and 1xTransmitter;4xWireless Headsets and 1xTransmitter; Note: Please allow 1-2cm errors due to manual measurement,please make sure that you donot mind befores you order. Due to the differences between different monitors, the picture may not reflect the actual item color. Package includes: Package A 1xWireless Headsets 1xTransmitter 1xCharging Cable 1xManual Package B 2xWireless Headsets 1xTransmitter 1xCharging Cable 1xManual Package C 4xWireless Headsets 1xTransmitter 1xCharging Cable 1xManual