Microphone Wireless Transmitter and Receiver 5.8GHz Wireless System for Dynamic Microphone XLR Mic Adapter Audio Mixer PA System DSLR Camera with Storage Box

Donner Bluetooth 5.0 Stereo Audio Amplifier Receiver, 4 Channel 1000W Max Power Home Theater Stereo Receiver with USB, SD, FM, 2 Mic in Echo, RCA, LED, Speaker Selector for Studio, Home - MAMP5

Riworal Wireless Microphone System Karaoke 4 Channel UHF Cordless Handheld Dynamic Mic with Bluetooth Receiver Box + Volume Control Echo Mic Work Range 165ft for Karaoke PA System DJ Mixer Party

Wireless Bluetooth Power Amplifier System - 420W 5.1 Channel Home Theater Surround Sound Audio Stereo Receiver Box w/RCA, AUX, Mic w/Echo, Remote - for Subwoofer Speaker - Pyle PT588AB.6

Pyle Wireless Bluetooth Home Audio Amplifier System-Upgraded 6 Channel 750 Watt Sound Power Stereo Receiver w/USB, Micro SD, Headphone,2 Microphone Input w/Echo, Talkover for PA - PTA62BT.5

Pyle