A8 Wireless Guitar System 2 Modes Built-In Rechargeable Lithium Battery, Black Product Details ? Clear Audio Quality??The wireless guitar transmitter receiver system adopts advanced UHF technology, high frequency which less than 4ms latency, supporting 3 sets of devices working at the same time (1 to 1), no lag or no signal loss. Effective transmission range is about 100 feet. Strong anti-interference ability delivers great audio quality and stable signal and maintains the original tone and feel of your instruments and playing. ? Plug and Play??Pull up to turn on the power and paired automatically. Press and hold the transmitter for 3 seconds to switch 2 modes. Green light showing on the receiver works in acoustic guitar mode, and blue light works in electric guitar mode. That's how simple it is. No wires, more freedom. ? High Compatibility??The 1/4" audio jack, compatible with most electric guitar, violin, drum, bass, keyboard, Bakelite guitar, electric-acoustic guitar and other digital music instruments with pickup. Compact and light-weight design fits any guitar and bass body types. The device are approved for worldwide use. ? Legible and Easy to Use??One unit is labeled for the guitar (transmitter), and one for the amp (receiver). Literally just plug and go. Unique design is easy to recognize and play. It is the best choice for beginner guitar, professional guitarist, bass player. ? Built-in Durable Rechargeable Li-battery??Working time is up to 4 hrs after 1.5 hrs charged. Comes with a dual-ended Micro USB cable for convenient recharging simultaneously, which ensures good performance for your every show. A must have for guitarist! Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.