Your music, noise free. When your music is on, nothing else matters. The JBL Tune 770NC Adaptive Noise Cancelling wireless headphones deliver on that promise all day-and longer, while sparing you the unwanted noises. With up to 70 hours of battery life, you'll easily get through a busy week of using them and still have enough JBL Pure Bass Sound to get you through the weekend. And if you do need a quick recharge, 5 minutes gets you an extra 3 hours of music. Lightweight, and flat-folding, the JBL Tune 770NC can also connect with two Bluetooth devices simultaneously, so you'll never miss a call while watching a movie on your tablet. With the free JBL Headphones app, you can tailor the sound to suit your taste. And voice prompts in your language will guide you through the features. Manage your calls and your voice assistant hassle-free right from your phone and use Voice - Aware to hear yourself when you're speaking. Just choose the color that best suits your vibe, and start having fun. Adaptive Noise Cancelling with Smart Ambient Adaptive Noise Cancelling means zero distractions when it's time to focus on your studies-or get your groove on. And if you want to hear the world around you without removing your headphones, Ambient Aware and Talk - Thru sharpen the sounds of your surroundings or voices. Easily activate these Ambient Sound Control modes through the JBL Headphones app. Bluetooth 5.3 with LE Audio (*) Wirelessly stream high-quality JBL Pure Bass Sound from your smartphone with the help of the latest Bluetooth technology. Optimize the Bluetooth performance with the Smart Audio & Video feature in the JBL Headphones app by selecting the Audio (for the best sound quality) or the Video (for an optimal gaming and video output) modes. (*) Available via OTA update at a later stage. JBL Pure Bass Sound JBL Tune 770NC headphones feature renowned JBL Pure Bass sound-the same that powers the most famous music venues all around the world. Customize your listening experience Download the free JBL Headphones App to tailor the sound to your taste by choosing one of the pre-set EQ modes or adjusting the EQ curve according to your content, your style, your taste. Voice Prompts in your language guide you through the Tune 770NC's other features. Hands-free calls with Voice - Aware Easily control your sound and manage your calls from your headphones with the convenient buttons on the ear-cup. Hear your voice while you're talking, with the help of Voice - Aware. Up to 70H* battery life with speed charge For long-lasting fun, listen wirelessly for up to 44 hours and recharge the battery in as little as 2 hours with the convenient Type-C USB cable. A quick 5-minute recharge gives you 3 additional hours of music. *Battery life: BT on / ANC off Multi-Point connection Effortlessly switch from one Bluetooth device to another. Jump from a video on your tablet to a call on your mobile phone, and never miss a moment. Lightweight, comfortable and foldable design The lightweight materials and soft ear cushions with a padded headband make the headphones comfortable to wear for extended periods. The foldable design makes it convenient to carry them anywhere-anytime you want music. General Specifications Driver size (mm) 40 Number of Microphones 1 Audio Specifications Driver sensitivity at 1kHz/1mW (d - B) 100 Dynamic frequency response range (Hz) 20 Hz - 20 k - Hz Impedance (ohms) 32 Dimensions Weight (g) 232 Weight (oz) 8.2 Charging Cable Length (m) 1.2 Charging Cable Length (ft) 3.9 Ear Cup External Height (in) 2.8 Ear Cup External Width (in) 2.8 Ear Cup Internal Height (in) 3.7 Ear Cup Internal Width (in) 3.7 Ear Cup Depth (in) 1.9 Ear Cup External Height (cm) 7 Ear Cup External Width (cm) 7 Ear Cup Internal Height (cm) 9.3 Ear Cup Internal Width (cm) 7.6 Ear Cup Depth (cm) 4.8 Audio Cable Length (ft) 3.9 Audio Cable Length (m) 1.2 Control and Connection Specifications Bluetooth version 5.3 Bluetooth profiles A2DP v1.4, AVRCP v1.6.2, HFP v1.8 Bluetooth frequency 2.4 GHz - 2.4835 GHz Bluetooth transmitted modulation GFSK, p/4-DQPSK, 8DPSK Bluetooth transmitter power < 10 d - Bm (E.I.R.P) Battery Maximum talk time (hours) 39 Charging time (hours from empty) 2 Maximum music play time with ANC off (hours) 70 Maximum music play time with ANC on (hours) 44 Maximum play time (hours) 70