The Joyo 10W Mini Bass Amp Dual Channel Small Carry Bass Amplifier Combo Product Details JOYO MA-10 series features dual channel dedicated for the related instruments switching easily. MA-10B: Switchable Normal / Drive dual channel. 5 inches customized full frequency speakers. with rated power of 10W (RMS), full frequency speakers dedicated for the related instruments. High quality Aux In Jack for playing backing track, 3.5mm stereo headphone output Jack, ensuring subtleness of music and interference-free. Different power supply modes, we can use the attached power adapter or 6xAA batteries, about 3hrs battery life with AA alkaline batteries. Innovative logo will light when it's switched on. Compact and lightweight body, plus 2 hidden shoulder strap buckles on both sides of the amp for conveniently hanging the shoulder strap(not including), easy to carry. Directly sold by manufacturer of JOYO Technology Co.,LTD which established at 2006. 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.