Bietrun UHF Wireless Microphone Headset， 165ft Range， Working Time 6H， 1/4''Plug， Wireless Headset Mic ＆Handheld Mic 2 in 1， for Karaoke Speaker， Amplifier， Mic Speakers， PA System， Teaching，

• Wireless microphone headset system: Only for Mic Jack, not Aux Jack, otherwise no sound ●Built-in high sensitivity condenser microphone, transmission distance upgrade to 160 Feet (50m) ●Signal Stability●No Delay●No Radiation ●Anti-Howling ●Anti-Jamming ●Constant Frequency ●Clearer Sound Quality. Compatible voice amplifiers, multimedia. It is a portable Karaoke equipment.(Excludes Amp＆Not supported Iphone, bluetooth speaker, PC and Laptop) ●Obtained by FCC test.
• Easy to use: Please turn on the transmitter and receiver power switches, the blue light will flash for approximately 2s. Indicator light stops flashing after a successful match, then you can use it. No further operation. ●Headset and handheld is 2 in 1 design, easily change the handheld mode to headset mode to meet your needs. Not supported Android Phones, Iphones, Macbooks, Laptop, Bluetooth Speaker.
• Charge and work of wireless microphones: The transmitter and receiver are built-in 400 mah rechargeable lithium-ion batteries that can offer about 6 hours working time. ●Usb cable has two micro USB V2.0 to charge for the transmitter and receiver simultaneously. Fully charge is only 2.5 hours. ●Perfect Application: The plug on the receiver is 3.5mm. For 6.35mm amplifiers, please use the additional 6.35mm adapter（included）to connect more equipments.
• Using multiple wireless microphone simultaneously: Please refer to the user manual to channel switching( Max 15 Channel ) in (●Part 4 Advanced Operations To 4.2 Note B, Page 8) Otherwise there maybe noise or no sound. Use up to 15 microphone headset at the same time. Built-in cardioid polar pattern condenser microphone, widely applied to conference, speech, Web podcast, Youtube, Google, outdoor Live, Yoga instructor, voice amplifier, dancing instructor, promotion, game etc.
• What if can't pair or no sound: ●1, Turn off the receiver and transmitter ● 2, Turn on the transmitter（Handheld Microphone), blue light is on, long press “+ ” to flash the blue light ●3, Turn on the receiver and wait for connection ●4, The blue lights of the transmitter and receiver stop flashing, the connection is successful. ●We offer 1 year warranty and free replacement service, please contact us at anytime if you have any question.

2023 Upgraded wireless microphone headset

• Not compatible with Bluetooth speakers, Android phones, iPhones and MacBooks
• Transmission range to160ft（50M）
• Enhances signal stability
• Reduces latency
• Anti-howling
• Anti-interference
• Constant frequency
• Clearer sound quality
• Transmitter and Receiver built-in 400 mAh rechargeable lithium-ion batteries
• 6 hours working time
• 2.5 hours charging time

Meet the professional needs of teaching, tour guides, games, promotions, guitarists, conferences, moderators, lecturers etc.

What if I can't Pair or not sound ?

• 1. Turn off the receiver and transmitter
• 2. Turn on the transmitter（Handheld microphone), blue light is on, long press “+ ” to flash the blue light
• 3. Turn on the receiver and wait for the connection
• 4. The blue lights of the transmitter and receiver stop flashing, the connection is successful.

Use multiple wireless microphone headsets at the same time.

• 1. Maintain the first set can be used normally.
• 2. Re-pair the second set. Then long press the "-", wait for the blue light to flash quickly once( switch channel once), confirm they have no interference and work normally.
• 3. And so on, the third set should re-pair and switch channel three times...

In order to make the wireless microphone Headset work normally, after receiving the product please charge it for 2.5 hours before using.