Rowin WS-30 Wireless Guitar System 2.4 GHz Rechargeable 4 Channels Wireless Guitar Transmitter Receiver for Electric Guitar Bass WS-30 Wireless Guitar Transmitter Receiver 2.4 GHz Rechargeable 4 Channels for Electric Guitar Bass Volin Features ? Application: Wireless Audio Transmitter Receiver set designed for electric music instruments,like guitar, bass, volin, keyboard etc. With Rowin WS-30, you are free to roam in stage, gigs and practice. It remains the orginal tone very well and signal is stable. ? Signal Latency: ?5.0ms, 2.4 GHz uncompressed wireless transmitting, ultra-short delay. 32bit/48kHz Hi-Res sound quality. Outdoor transmission range is 32 to 100ft. ? Long Battery Life: Built-in a 650mAh rechargeable lithium battery, 6-20hours long working hours, it depends on the operating situation. The indicator always keeps you aware of what your battery level is. ? One-to-Many Support: 4 Channels, support 4 sets of devices independently working at the same environment without any interference. One-to- One or One-to-Many transmission. TIPS 1.Please kindly notice active guitars (which use a battery) will not work with this wireless system. 2.Please use the qualified adapter to charge this product.(Mobile phone?s 5V 1A adapter is OK). 3.Please charge this unit up to 5-7 hours to make sure it is full charged. 4.Please full charge this unit before using it on performance. 5.If you meet the cut out problem please just turn off the WIFI or other strong signal device to avoid the signal interference. Brand Name: Rowin Model Number: WS-30 color: Black Stock: 100% Original Rowin Certifications: RoHS,CE,FCC Super Low Latency:: ?5.0ms Range:: 30m/98ft Frequency Response:: 20-20KHz,+1dB/-3dB Operating Band:: 2.4GHz LSM Worldwide Battery-650 mAh:: 6-20Hours(depends on the operating situation) Product Size:: 70*47*30 mm weight: 116g(with box) Box contains: Rowin Wireless Send Receiver set, Double charging cable*1 pc, User manual*1 pc No Duty to Canada and USA FAST 'N FREE USA Shipping Ships from Canada