XIAOKOA Rechargeable Electronic Guitar Wirele System Wirele transmitters and receivers can be used for electro acoustic instruments such as guitars, ba, violins, etc. Easy to use,plug and play. Wirele Guitar Tansmitter Receiver LED Display You can intuitively learn and master thefrequency,volume andpowerand adjust them easily. 6.35mm Jack We also offer 3.5mm adapter (included)for receiver to connect more Amplifier Equipments. 270 Rotatable Plug Design Available for instruments with input jack in different positions. Read more Multiple Pairing Support up to 15 sets of music instrument working at the same time Durable Battery Built-in 500 mAh rechargeable battery, if full charged, the system can work for about 6 hours. Long Distance Transmiion The max transmiion range is 164ft/50m. The optimal transmiion range is 65ft/20m. Read more The wirele transmitter & receiver ideal for variety occasions Widely used in different occasions, such as concert, symphony, teaching, street performance and so on. Read more