BERIK Stereo Bluetooth Headset ST-558 (5 in 1)

Product Specifications Bluetooth Specification: V2.1+EDR Class2 Bluetooth Profiles Supported: Headset, Handsfree, A2DP And AVRCP Battery Specification: Li-ion Battery (3.7V 150MAH) Range Of Frequency: 2.4GHZ Spectrum Nominal Charging Time: Within 3 Hours Talk Time: Up To 6.5 Hours Music Playing Time: Up To 6 Hours FM Radio Time: Up To 5 Hours FM Transmlt: Up To 4 Hours Standby Time: Up To 150 Hours Work Range: 10 Metres Dimensions: 47(L)*22.2(W)*24.6(H)mm Weight:15 Grams *May Vary Due To The User’s Habit, Different Modes Of Operation, And Mobile Phone Settings. setting succeed. Troubleshooting I can hear crackling noise. To receive the best audio quality, it is recommended to wear your headset on the same side of the body as your mobile phone. I can’s hear anything in my headset. *Ensure the headset is turned on and is properly charged. *Ensure the headset is properly paired with the mobile phone. *Make sure that the mobile phone is connected with the headset-if it does not connect, either refer to the mobile phone’s Bluetooth menu or by pressing the MFB once (see “Using your headset” and “Pairing your headset with a Bluetooth mobile phone”). I can’t connect my headset with mobile phone. *Ensure your headset is turned off and is properly charged. *Ensure the headset is properly paired with your mobile phone. *Ensure your mobile phone’s Bluetooth feature is activated.Please refer to your mobile phone user guide for specific instruction. *Ensure the headset is within 10 metres range of your mobile phone and there are no obstructions, such as walls or other electronic devices in between. If the above steps do not solve your problem, please recharge the headset and remove your mobile phone’s battery for a while. I can’t turn off the headset or the headset does not response *You may do a “hardware reset” on your headset if you can’t turn it off or it doesn’t response. Safety Information *Check and observe local laws regarding the use of a mobile phone and a headset while driving. If you use the headset while driving, ensure your full attention and focus. It is your responsibility to drive safely. Consider to pull off the road before making or answering a call. *Never leave you headset above any air bag deployment area inside you car as serious injury may result when an air bag deploys. *Never allow children to play with the headset—small parts may be of choking hazard. *Observe all signs and displays that require an electrical device or RF radio product to be switched off in designated areas, these could include hospitals, blasting areas, and potentially explosive atmospheres. *Turn off your headset prior to boarding an aircraft, do not use your headset inside an aircraft. *To prevent damage to you hearing, please do not set the listening volume too high. *Do not attempt to modify the headset. *Do not keep the headset near a wash basin or other wet places. *Do not use the headset outdoors in the rain. *Do not use the headset in stormy weather. *Do not clean the headset while it is being charged. Always disconnect the charger from the headset before cleaning. *Do not attempt to force open the built-in battery.