Bluetooth Wireless Microphone Speaker Handheld Cellphone Mic for iPhone and Android Phones Specification: Pickups: Capacitive Frequency range: 100Hz-10KHz Output Power: 10mW/Headphone output 3W/Speaker output Battery capacity: 1000mAh Charging Time: 2 hours Sing/Recording Time: Up to 5 hours Power supply: Internal Battery Charging voltage: DC 5V SPL: 115dB 1KHz Note: Power on :Press the power button about 3s until the blue indicator flash. Power off : Press the power button about 3s until the blue indicator went out. Pair to your smartphone: Turn on your bluetooth on your smartphone. Then search for the bluetooth device and select “KGZW”. If pair successful you will hear indication voice “Di” the megaphone will flash like “R G B” light in sequence. Package Includes: 1 x Microphone 1 x USB Line 1 x Audio Line 1 x User Manual