At Amazon, the EIVOTOR Wireless Microphone for € 15.99 instead of € 39.99 incl.

The coupon code AIQMKEWZ reduces the price in the shopping cart. 

【Stable signal with UHF frequencies & 25 channel】 - The Wireless Microphone uses the UHF500-980MHz segment and offers 25 channels to choose from, which means it can effectively prevent interference and give you a stable signal. 

【Plug & Play and Long Usage】 - The wireless microphone is easy to use, you do not need to install any other application software. The radio microphone is powered by 2 AA batteries and can normally be used for 10 hours (depending on battery quality). The mini USB receiver has a built-in battery for up to 6 hours, which you can also use while charging. You can also see the power and signal indicators on the microphone's LED screen.

【High-quality sound quality up to 50m】 - The dynamic microphone is equipped with professional pickup technology and a Mic windscreen that effectively reduces ambient noise and gives you clear and bright vocals. Effective distance up to 100 meters (best in 50 meters). Wireless design is also very suitable for weddings, conferences, speeches, karaoke, etc.

【More compatible with 3.5 Audio Adapter】 - The wireless receiver uses a 6.35mm plug that can be connected directly to a device with a 6.35mm interface, such as a 1/4 "adapter. We also have 3.5mm AUX adapters for more audio devices like BT speakers, desktop computers, etc.

【Metal Microphone & Friendly Service】 - The microphone head and shell of the microphone are made of metal, with a strong structure, strong drop resistance and comfortable grip. In addition, we offer 6 months exchange warranty service. If you have any questions, we are always at your disposal.