Q: How to connect the device? A: First time connection, short press the power button until the led flash in blue and red alternately , then turn on your smartphone to search available device( HBQ-i7) , then you could listen to music and make calles. Q: About charging and battery life? A: Using the Nokia mini-charging interface, fully charged the battery in 80 minutes. When taking charge, the led would be in red, and turns in blue when fully charged.