Features & details 🎸POWERFUL SOUND & RELIABLE ENDURANCE：Enough volume for room and living room practice, with built-in rechargeable battery, 4 hours playtime on a single charge, package included USB charging cable. 🎸TWO-TONE CHANNELS:The tone channel can be switched by the switch on the back of the amplifier.It also has three stages of EQ and gain and Master regulation.Everything from cleaning to warm overload to restless British distortion. 🎸LITTLE SIZE BATTERY LIFE:The DA-10 can play for up to four hours at a peak output of 5 watts.Even so, its tiny design makes it easy to handle with one hand.You can go everywhere with this mini amplifier, just plug and play.Since the current input to the amplifier during charging may not be sufficient to offset the power consumed by the amplifier itself, we recommend charging the amplifier for about 10 minutes before using it when the battery is completely depleted. 🎸UNPARALLELED DERAILS:1/8" Auxiliary Input Jack for Jam-Along with Media Player or CD, 1/8" Headphone Output Jack for Silent Practice, package included 3.5mm Male to Male Stereo Audio Cable. 🎸STRONG&STURDY:The edge is surrounded by hard material, protecting the amplifier from damage and a pad of rubber makes it stand safe and stable.