Different LED Indicator Shows: 1. Power on: the LED indicator in blue and flash 1s; 2. Power off: the LED indicator in red and flash 1s; 3. Bluetooth Pairing: the LED indicator flash red and blue in alternating color; 4. Standby mode (without bluetooth connected): the LED indicator in blue and flash once every 10s; 5. Standby mode (with bluetooth connected): the LED indicator in blue and flash once every 7s; 6. Dial: the LED indicator in blue and flash once every 2s; 7. Play music: the LED indicator in blue and flash once every 2s; 8. Charging: the LED indicator in red; 9. Full charging: the LED indicator in blue; 10. Low battery: the LED indicator in blue and flash once every 20s、 and you will hear the warming tone.  Simple Instruction for Pairing: 1. Press and hold the power button for 5s into pairing mode; 2. Open the bluetooth function and search for "AWEI-A832BL"、 then pair it. Specifications:          General Specification             Brand        AWEI             Model        A832BL             Color        Gray、 Rose Gold             Wearing Type        In-ear             Product Weight         12.2g           Technical Parameters             Connectivity        Bluetooth connection             Conectivity Interface        Charging port             Driver Unit        10mm             Receive Sensitivity        -42dB ± 3dB             Impedance         16Ω ± 15%             Frequency Response        20Hz - 20KHz             Bluetooth Version        BT V4.0             Bluetooth Protocol        HSP、 HFP、 A2DP、 AVRCP             Transmission Range         Within 10 meters             Battery         3.7V 65mAh             Charging Voltage        DC 5V             Charging Time          1.5-2 hours             Standby Time        about 130 hours    Package  Included:                  1 x A832BL Earphone            1 x Charging Cable            1 x Intelligent Base            1 x Clip            2 x Earphone Plugs            1 x User Manual