["JBL Pure Bass Sound: Smartly designed 10mm drivers enhanced by the buds form factor deliver JBLs Pure Bass Sound so youll feel every pulsing beat." Bluetooth 5.3 with LE audio support (*): Thanks to the next generation Bluetooth technology the JBL Tune Buds earbuds stream audio with low power consumption at high quality. Plus BT 5.3 allows to stream synchronized audio independently to each earbud so that you can use either or both earbuds. Or you can share your video or music content with a friend wearing headphones as BT 5.3 lets you seamlessly stream audio to multiple listeners. (*) Available via OTA update at a later stage "Active Noise Cancelling with Smart Ambient: Hear more of what you want less of what you dont. Active Noise Cancelling technology lets you minimize audio distractions. With Ambient Aware you can tune into your surroundings at any time so that you feel safer when youre out in the world while TalkThru lets you stop for a quick chat without having to remove your headphones." "4-Mic technology for Crisp Clear Calls: Enjoy hassle-free hands-free calls in stereo. The Tune Buds are equipped with dual microphones so youll always be heard with perfect clarity. Never hesitate to take or make a call again. And with VoiceAware you can choose how much of your own voice to hear by controlling the amount of mic input routed back into your earbuds." Up to 48 hours of battery life: Never miss a beat with 48 (12 plus36) hours of battery life or 10 hours plus 30 hours in the case when noise cancelling is engaged. Need a boost? Speed Charge for just 15 minutes to get 4 hours of playtime.]