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 SpeakerRated Power: 15wPeak Power: 30wSpeaker Unit: Full-Frequency 5.5 Inch x 15w x 1;Adapter: Mini USB Interface DC 5V 2000mA;Battery: DC7.4V / 2600mA Lithium-Ion BatteryChannel 1-Microphone Channel:Signal To Noise Ratio: 85dbInput Impedance: 10kohmBalanced:Bass: 12dB 125hzTreble: 12dB 8khzEffect: ReverberationChannel: 2-Guitar ChannelSignal To Noise Ratio: 95dBInput Impedance: 2kohmEffect: Reverberation (Use A Switch To Share A Channel Effect)Compatible for Bluetooth: V5.0 Version, Effective Barrier-Free Distance 15mFrequency Response: 20hz-20khzCharging Time: 1.5-2 HoursEndurance: Normally Play Music For 4-8 Hours.Package List:1 x Guitar Speaker 1 x Handle Strap 1 x Charging Cable 1 x Manual