JBL DEEP BASS SOUND: The sound of your last concert, for your ears only. Enjoy deep bass powered by the 8mm drivers. Bluetooth deliver up to 30 feet of wireless range but can be variable depending on the environment/walls/ electronic device, etc.Specific uses for product : Entertainment | Product Note : If the size of the earbud tips does not match the size of your ear canals or the headset is not worn properly in your ears, you may not obtain the correct sound qualities or call performance. Change the earbud tips to ones that fit more snugly in your ears. No voice assistant feature available | 20H BATTERY: With 5 hours in the earbuds and 15 hours in the case, the JBL Vibe 100TWS true wireless earbuds can keep up with your rhythm all day long. Charging time - 2 Hrs | LISTEN WIRELESSLY FROM EITHER EAR, OR BOTH: Left ear, right ear, both ears. The power of Dual Connect gives you the choice to enjoy music or make calls with either one or both buds, wireless. And the battery life keeps up with you, as you can keep one earbud charging, while using the other one..Note:If you face issue in Bluetooth connectivity please turn off the Bluetooth function for a couple of minutes, then turn it back on | WIRELESS CALLS: Calls and sound are easily managed from the earbuds with Bluetooth, as is the access to your device's voice assistant. Box includes three different size of silicon ear-tips for perfect/customized fit | COMFORT-FIT: Ergonomically shaped, the JBL Vibe 100TWS fit with comfort in your ears even after hours of listening pleasure. The ear tips in 3 sizes ensure a perfect seal for extra comfort and sound clarity.