JW-01 Digital Blue Tooth Guitar Wireless System Rechargeable

The Joyo JW-01 can also be used to send signal to powered monitors, powered speakers and with its special functions one sender to many receivers can send signal to many enclosures making it perfect for DJ's Karaoke hosts and many club installations saving on expensive lengths of signal or speaker wire.

Digital Wireless Transmitter Receiver
Wireless Digital Transmitter & Receiver JOYO JW-01 2.4Ghz Features: Lightweight Compact Design Extremely Responsive 2.4Ghz
Digital Pick Up & Transfer Microphone Input with Gain Easy Set Up,
No Manual Tuning or Programing Required Rechargeable Lithium Battery Low Battery LED Warning System
High-quality voice, all digitals, 2.4G Audio 
Transmission distance is 20 to 30 meters, while 50 meters outside the room. Unlike Analog Audio, it will not be influenced by external signals or phones.
Signal to Noise and Distortion > 87dB Support "One-to-Many".(one to one, one to many amplifiers)
Battery: Lithium battery (included,lasting for 6 hours long or longer after being charged for 1-2 hour).
Near zero latency time, no signal interference, 60 feet or more of signal distance makes this the perfect choice for any musician looking for a cable free setup. Rechargeable batteries built in make this very easy to use. 
Includes adapter for recharging.
Features

• High quality sound, all digital, 2.4G frequency transfer
• Transmission distance is 20 to 30 meters (about 60 feet)
• Channel switching options reduce interference from external signals or phones
• Signal to noise more than 87 dB
• Supports one-to-many, one-to-one amplifiers
• Built-in rechargeable battery and usb interface for recharging
• Easy to use, plug and play
• Universal for all electric musical instruments
• Will accept headphone microphone if you wish to use it as a mike system
  
• Receiver size: 12 x 4 x 2.5cm
• Transmitter size: 9.5 x 5 x 2.5cm