Set of Bluetooth wireless karaoke microphones Sencor

Two Wireless Microphones with Receiver
Microphones
Distance up to 20 Meters
Microphone Battery: 2x AA/LR6
Working Time up to 3 Hours
Audio Frequancy Respose: 40 - 18000Hz
Dimmension: 24.5x5x5cm Each
Weight: 142g (Without Battery) Each
Receiver
Working Frequency: 214.2 and 180.2MHz
Receiver Rechargeable Battery: 600mAh Li-Ion
Working Time up to 3 Hours
Receiving sensitivity:  -95 ~ -71dBm
Dimmension: 11x3.5x2cm
Weight: 31g (Without Battery)
Supported SENCOR Models
PARTYCON BOOST
PARTYCON CORE
SSS 3800
SSS 3900
SSS 3600
SSS 3200
SSS 3700
SSS 4002
SSS 4201
Requires a 6.3mm Microphone Input with Volume Control