4.1 Bluetooth Headphones Wireless Headset Stereo Neckband Sport Earbuds with Hi-Fi Stereo Built-in Mic for Sports Workout 1. Before you start using the headset, please use the USB charge cable to charge it first. 2. Push calling button for 2-3 seconds to start device, you will see the red and blue light flash alternately. 3. Make sure you turned on the bluetooth on your phone, search ""SM818"" on it. Once the devices are paired, you will hear ""Your headset paired"". 4. Select""SM818' and click connect. Enter the password or code 0000 if needed. Connect to a cell phone via Bluetooth First time connection-Make sure Bluetooth is turned on in settings on desired cell phone. The cell phone must be within 10 meters of the speaker to connect and remain connected. Be sure that the Bluetooth button on the speaker was pressed and that the device then has a blinking blue light, which signifies that the device is in discover mode. Search for the Bluetooth device as SM818 in the Bluetooth settings of the cell phone Unable to connect using any device-Power both the headset and the cell phone on and off to reboot systems. Make sure that the devices are compatible. Make sure both devices have all updates installed. Try connecting to the speaker using a new device by following the first time connection section above. If you are still unable to connect using any device, you may need to replace the motherboard. Specification General Type: Headphones Model: V21 Bluetooth Headset. Quantity: 1 Piece Bluetooth Profile: A2DP, AVRCP, HSP, HFP Range: 15m Charging Power: 5V/500mA Working Time: 12 hours Charging Time: 1.5-2 hours Weight: 110g Product) Dimensions (L*W*H): 21x 15 x 3cm Package Contents 1 X V21 Wireless Headset Stereo,1 x USB Charging Cable "
