The WS-20 comes in the handy pocket-sized forms of a transmitter and its corresponding receiver. The design makes it very easy to use: simply plug in each unit into your guitar and corresponding amp/pedal chain, each unit will talk to each other and sync up, then you are good to go. Each unit is equipped with red LEDs that indicate whether or not the units have synced correctly. With an impressive 105dB dynamic range at your disposal, crystal-clear sampling at 24Bit/48kHz, and a frequency range spanning 20Hz to 20kHz, you can rest assured that the most subtle of nuances with regard to your performance are captured and transmitted with the utmost fidelity. Thoughts? I want one and I'm not going to spend over 50 dollars. So I want to try one out. 1. High-quality transmit with 48k-16bit sampling. 2. 2.4G uncompressed transmit. 3. About 30 meters transmit of outdoors. 4. 180° rotatable head, available for most music instruments. 5. Fit for all the electronic music instruments. 6.1100mAh lithium battery,USB port for charging. 7. It is easy to use, plug and play. 8. Support 6 sets of devices working at the same time, one-one. 9. 105DB dynamic range. 10.Material:ABS plastic.