zihnic active noise cancelling headphones, 40h playtime wireless bluetooth headset with deep bass hi-fi stereo sound,comfortable earpads for travel/home/office (black) zihnic <b>features</b><br><br> <b>stereo sound</b> <br> designed for an excellent listening experience, zihnic active noise cancelling headset around-ear cushion design can provide robust, immersive and hi-fidelity sound.<br><br> <b>compatibility</b> <br> the bluetooth headset can easily and quickly connect with smartphones, tablets, tvs (with bluetooth )and other bluetooth devices within 33 feets, bringing you crystal clear sound effect.<br><br> <b>adjustable headband</b> <br> the headphones offer not only sleek style with a slim profile but also an adjustable contoured headband, it allows you to get a great position on your head.<br><br> <b>warranty</b><br> 12-month warranty and quick response & friendly customer service.<br><br><br> <b>specification</b><br> product type: bluetooth headset<br> wear style: head wear<br> functional use: wireless headphones<br> bluetooth version: v5.0<br> support bluetooth mode: a2dp\avctp\avdtp\avrcp\hfp\spp\smp\att\gap\gatt\rfcomm\sdp\l2cap<br> range: 33 feets (10 meters)<br> power indicator: blue light<br> battery capacity: 500mah<br> normal charging time: about 1.5 hours<br> play time: around 45 hours<br> other features: support status indicator, charge indicator display<br><br><br> <b>what's in the box</b> <br> 1* bluetooth headset <br> 1*type-c cable<br> 1*3.5 mm audio cable<br> 1*user manual<br> 1*premium case<br>