#3号样品分析步骤：1、检查充电盒有5V输出，将耳机放入充电盒中，左耳

Analysis Sample No. Step # 3: <br>1, check the charging box has 5V output, the headset into the charging box, the left headphone charging lights are on, but no charging current, the headset can not be switched. Right headphone into the charging box can not be charged, charge indicator no response, the headset can not be switched. <br>2, the left earphone PCBA board test normal quiescent current, the product after replacing the battery may be charged and the normal use of the boot, the defective battery capacity test, charging the battery charge does not go found. (Annex test report battery capacity) <br>3, the right headphone PCBA board test normal quiescent current, the product after replacing the battery may be charged and the normal use of the boot, the defective battery capacity test, the test results are satisfactory. (Annex test report battery capacity).

#3号样品分析步骤:<br>1, check the charging case has 5V output, put the headset into the charging box, the left headset charging light lights up normally, but no charging current, the headset can not be turned on. The right headset into the charging box can not be charged, the charging light does not respond, the headset can not be turned on.<br>2, test left headset PCBA plate static current is normal, the product can also be replaced after the battery can be normal charging and start-up use, the defective battery capacity test, found that the battery charge does not go in. (Battery capacity test report is detailed in annex)<br>3, test right headset PCBA plate static current is normal, the product can also be replaced after the battery can be normal charging and start-up use, the defective battery capacity test, test results qualified. (The battery capacity test report is detailed in the annex).

#Sample 3 analysis steps:<br>1. Check that the charging box has 5V output, put the headset into the charging box, and the charging indicator light of the left headset is on normally, but without charging current, the headset cannot be turned on. The right headset can't be charged when it is put into the charging box, the charging indicator doesn't respond, and the headset can't be turned on.<br>2. The static current of PCBA board of left earphone is tested to be normal, and the product can be charged normally and used after the battery is replaced. The defective battery is tested for capacity, and it is found that the battery cannot be charged. (see the attachment for the battery capacity test report)<br>3. The static current of the PCBA board of the right earphone is tested to be normal, and the product can also be charged normally and used after the battery is replaced. The battery capacity of the defective product is tested and the test result is qualified. (see the attachment for battery capacity test report).