M17 Bluetooth 5.1Headset Wireless Earphones Mini Earbuds Stereo Headphones Product parameters： Mode：M17 Bluetooth version：V 5.1 Noise reduction： CVC8 .0 Working distance; About 10 meters headse:50mah Automatic boot upsupport Automatic matching support Battery life120 hours or so ( to be used with charging cabin ) Phone calls time180 hours or so ( to be used with charging cabin ) Charge the headset 40 times or so Input current5V 1A Magnetic function Magnet charging mode to-uch control Play / Pause ( light to-uch the left earphone once )Answer / Hang up ( light to-uch the left earphone onceSummon ( long press the left earphone for 1 seconds ) Features： functionsVolume reduction ( to-uch the left earphone in a )Switch the previous song ( to-uch the left earphone seconds )Turn On / Off ( Long press the earphone for 5 seconds )Applicable products Smart matching mobile phones , tablet computerscompartment and close the lid , the earphone wi / / sincTearphone charging : Put the earphone in the chargingautomatically charge , the earphone will light upCharging red when charging , and turn off when fully chargedCharge cabin charging : connecting the cable ,the red light in the charging cabin lights up , and thered light goes out when fully charged Package includes： Earphone * 2, ear cap * 1, charging cable * 1, Chinese and English manual * 1