Feature of product:
1. Wireless transmitters and receivers can be used for electro-acoustic instruments such as guitars basses and fiddles.
2. Ultra-high frequency 730mhz sound transmission anti-interference ultra-short delay.
3. Support 4 sets of equipment to use at the same time the transmission range can reach 50m.
4. Built-in rechargeable lithium battery long working time equipped with USB cable easy to charge.
5. Plug and play simple to use small size light weight easy to carry.

Specification:
1. Audio response range: 20Hz-20kHz.
2. Frequency: 730mhz.
3. Transmission range: 50m (unobstructed) 30m (through the wall).
4. Transmission delay: less than 4m / s.
5. Power: Built-in 3.7V 600mAh rechargeable lithium battery.
6. Charging time: 2 hours.
7. Continuous use time: 6 hours.
8. Charging port: Micro USB.
9. Product size: 11x4.5x1.5cm.