Company Overview - Shenzhen Zhongkerong Electronic Information Co., Ltd.

Shenzhen Zhongkerong Electronic Information Co., Ltd.

Callvi V-996 NFC Wireless Microphones Teaching System Voice Amplifier for Classroom $239.39-345.55 Min. Order: 50 sets	CallVi V-919 Portable Wireless Voice Amplifier with USB, SD, FM, and Rechargeable Battery for Classroom Teaching $65.29-66.39 Min. Order: 10 sets	Callvi V-800 Professional High Power Speaker FM Radio Audio Voice Amplifier for Teachers $29.59-30.39 Min. Order: 1000 pieces	Callvi V-25 20W Portable Voice Amplifier with Microphone for Tours, Classes, and Meetings $21.53-24.36 Min. Order: 10 sets
	Callvi U-222 New Wireless Microphone Amplifier Mini Portable Voice Amplifier With BT $36.36-38.69 Min. Order: 10 pieces