Description:Name:&nbsp;Wireless Microphone Headset;Frequency range: 600-900MHZ;Current: 0DB&lt;75MA;Frequency response: 20-20KHZ;Audio signal: digital sampling, mixed output;Matching method: automatic matching;Operating voltage: 3.7V polymer battery;Power consumption: ___35mA;Charging input: DC5VUSB port;Charging time: 2 hours;Battery life: about 8 hours;Packing list:1 x microphone1 x receiver1 x adapter1 x USB cable1 x windproof cotton1 x manual1 x packing boxNote:Due to manual measurement, please allow 1-3cm differences, thanks (all measurements are in cm, please note that 1cm=0.39 inches).&nbsp;There may be color difference due to different computers or smartphones, please forgive me! <div class="panel panel-info"><div class="panel-heading" style="font-weight:bold;">IMPORT: THIS ITEM IS SHIPPED FROM CHINA. PLEASE EXPECT UP TO 25 DAYS FOR DELIVERY</div></div>

Wireless Microphone Headset 80M Long Range Hands Free Classroom Microphone For Singing Voice Amplifier Teaching Fitness black