VHF Handheld Wireless Microphone Mic System 5 Channels for Karaoke Business Meeting Speech Home Entertainment

Features:
200-290MHz VHF wireless handheld microphone & receiver system for karaoke, party, DJ, business meetings, speech or other outdoor & indoor activities.
High-quality sound transmission, clear voice and low noise, without feedback and free from distortion, suitable for live performance.
5 selected channels, supports using 5 sets at the same time; and the effective transmission range is about 30M in open area.
Specifications:
--System
Frequency Response: 200-290MHz
Frequency Bandwidth: 50MHz
Modulation: Broadband FM
Number of Channels: 5 channels
The Peak Frequency Deviation:  45KHz
Frequency Responses: 80Hz-15KHz
S/ N Ratio: 50dB
T.H.D. (Overall): 2%
Working Distance: 30m no obstacles
Working Temperature: -10c-55c
--Receiver
Sensitivity: 5dBuV
Spurious Suppression: 80dB
Audio Output: 1/4 unbalanced output 400mV/3Ko
Power Supply: 2  AAA Batteries(not included)
Receiver Size: 7  2.7  2.3cm / 2.8  1.1  0.9in
Receiver Weight: 29g / 1oz(without batteries)
--Transmitter
Transmitter Power: max. 30mW
Transmission Stability: ＜30ppm
Dynamic Range: 100dB(A)
Frequency Responses: 50Hz-15KHz
Sound Pressure: max. 130dB SPL
Power Supply: 2  AA Batteries (Not Included)
Transmitter Size: 24  4cm / 9.4  1.6in
Transmitter Weight: 128g / 4.5oz(without batteries)
Package Size: 29.5  13  6.5cm / 11.6  5.1  2.6in
Package Weight: 300g / 10.6oz
Package List:
1  Microphone
1  Receiver
1  Anti-Slip Sleeve 
1  Foam Cap