Model: Q7 Wireless: Bluetooth 4.0 Pickup: Capacitive Material: Aluminum + ABS Style: Handheld Microphone amplifier speaker Frequency Range: 100Hz to 10KHz Maximum SPL: About 115dB at 1KHz THD: Up to 1% Reverb Mode: Echo Sound Reverberation Speaker driver: 3W Battery: Li-Polymer 3.7V /...