Descriptions: Style:Headphone Communication:Wireless Function:Monitor Headphone With Microphone:Yes Is wireless:Yes Wireless Type:bluetooth 5.0 Control Button:Yes Volume Control:Yes Active Noise-Cancellation:Yes Features:With Microphone Headphone Pads Material:Soft Foam Power by: 2 x AAA batteries(not included) Features: 1. The wireless headset can wirelessly listen to all channels of TV audio, computers, game consoles, DVDs, VCDs, stereos, MP3s, CDs and other electrical appliances with audio output. (Test result: the effective distance is about 30 meters, and the effect of 10 meters is good). When not chatting, try not to plug in another microphone output line to avoid interference caused by noise. 2. This wireless headset is equipped with a microphone that supports voice chat. The effective distance is about 5 meters, and the effect is good within 2 meters. Note that it should not be placed near strong electromagnetic interference such as speakers. 3. Place the transmitter next to people who need care, such as babies, the elderly, and patients, and use the receiver to listen to the voice of the person being taken care of, making it easy to take care of. 4. Can listen to F M radio, automatically track, lock, and store radio stations. 5. The receiver with audio cable can also be used as a wired headset Packing list: 1*headphone 1*transmitter 1*audio cable 1*Power cord Note: 1.Please allow slight size deviations due to manual measurement,measuring methods and tools. 2.The picture may not reflect the actual color of the item because of different photographing light and display monitor.Thanks for your understanding. Wireless Earphones: Enjoy wireless listening to all channels of TV audio, computers, game consoles, DVDs, VCDs, speakers, MP3 players, CDs, and other audio output devices. Effective distance is approximately 30 meters, with optimal performance at 10 meters Online Chat: Built-in microphone on the transmitter allows for voice chat with an effective distance of about 5 meters, performing well within 2 meters. Position the transmitter away from strong electromagnetic interference for best results Wireless Monitoring: Use the transmitter to monitor individuals in need of care, such as infants, elderly, or patients. The microphone converts wireless signals, allowing you to hear the person being cared for from a distance of about 20 meters, even through walls FM Radio: Listen to FM radio with automatic tracking, locking, and storing of radio stations for convenience Wired Earphones: The receiver can also function as a wired headphone using the included audio cable, providing flexibility when wireless use is not needed