Brand Name: retekess
Transducer: Crystal Microphone
Set Type: Transmitter Sets
Style: Gooseneck Microphone
Use: Wireless Tour Guide System
Origin: Mainland China
Package: Yes
Model Number: TT109
Polar Patterns: Cardioid
Certification: CE,FCC
Communication: Wireless
Frequency range: 2400-2480MHz
Channel: 50 channels
Output power: 10mW
Transmitter Power supply: Built-in 1500mAh lithium battery
Transmitter Working time: About 8 hours
Transmitter Working distance: 180 meters (open air)
Transmitter Size: 86 x 50 x 19mm
Transmitter Weight: 60g
Receiver Power supply: Built-in 1000mAh lithium battery
Receiver Working time: About 18 hours
Receiver Size: 86 x 50 x 19mm
Receiver Weight: 51g