Bluetooth version: 5.0
Vibration pickup: Single-pointing capacitor microphone head
Speaker diameter: 57mm
Frequency range: 120Hz-13kHz
Speaker Power: 5W
Reverb: echo sound effect reverb
Operating voltage: 3.7V
Charging Duration: 4-5 hours
Power Adapter: DC5V/1000mA (Universal with mobile phone charger)
Battery Specification: 1200mAh/18650 built-in battery with wire