UHF 730MHz original sound transmission, anti-interface and ultra-short delay, giving you the best music sound.  Plug and play, simple to use; compact size and lightweight, easy to carry.

Features:

• Material: ABS
  
• Audio Response Range: 20Hz-20kHz
  
• Frequency: UHF 730MHz
  
• Transmission Range: Max.50M (No obstacle); 30M (through-wall)
  
• Transmission Delay: Less Than 4ms
  
• Power Supply: Built-in 3.7V 600mAh rechargeable lithium battery
  
• Charge Port: Micro-USB
• Supports 4 sets of devices working at same time, one-to-one; and max. transmission range is up to 50 meters.
  
• Built-in rechargeable lithium battery, long working hours; and comes with USB cable for convenient charging.
• Item Size: 11 x 4.5 x 1.5cm / 4.3 x 1.8 x 0.6 inch