Feature: 1. Portable designed: The product replaces the traditional plug-in form with a battery, which can be easily carried with the carrying. 2. Sound characteristics: The guitar channel of this product restores the guitar sound 1: 1, and the microphone channel is embedded with two equalization sections and reverb effects to achieve the vocal modification function. 3. Strong core components: High-efficiency Class D amplifiers and powerful power batteries enable the product to achieve efficient energy utilization while reducing weight. 4. Endurance: 1.5-2 hours of charging, 4-8 hours of normal music playback. 5. With a strap for carrying the guitar amplifier conveniently by your hand. Specification: Item Type: Guitar Speaker Rated Power: 15w Peak Power: 30w Speaker Unit: Full-Frequency 5.5 Inch x 15w x 1; Adapter: Mini USB Interface DC 5V 2000mA; Battery: DC7.4V / 2600mA Lithium-Ion Battery Channel： 1-Microphone Channel: Signal To Noise Ratio: 85db Input Impedance: 10kohm Balanced: Bass: ± 12dB 125hz Treble: ± 12dB 8khz Effect: Reverberation Channel: 2-Guitar Channel Signal To Noise Ratio: 95dB Input Impedance: 2kohm Effect: Reverberation (Use A Switch To Share A Channel Effect) Compatible for Bluetooth: V5.0 Version, Effective Barrier-Free Distance 15m Frequency Response: 20hz-20khz Charging Time: 1.5-2 Hours Endurance: Normally Play Music For 4-8 Hours. Package List: 1 x Guitar Speaker 1 x Handle Strap 1 x Charging Cable 1 x Manual