Environmental Noise Cancellation: Equipped with Quad Mics, experience a crystal clear calling experience, as ambient noises get filtered out..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 Long Battery Life: Playback time of upto 30 hours on a full charge. Type-C Fast Charging takes 1-1.5h for a full charge, with 1 week of standby time. Off-Axis Technology: Oval-shaped earbuds with nozzle angled at 60 degree tunnels the sound directly into the ear canal, which also provides noise isolation. Micro-woofers: Robust aerospace grade AL alloy encased over micro-woofers which provide crisp deep bass for bass heads, crystal clear highs and stable midst audio signature. Specifications  Brand: Boult Audio Model: AirBass Encor X Color: Black, White Model Year: 2022 Product Dimensions: 5.6 x 5.2 x 2.7 cm; 100 Grams Batteries: 1 Lithium Ion batteries required. (included) Operating System: IOS 8.0/ Android 4.3 or above operating system Hardware Platform: Smartphone Special Features: Environmental Noise Cancellation, Micro Woofer, 30 Hours Long Battery Life, Water Resistant Mounting Hardware: ENCore X Earphones, Charging case, Extra Pair of Eartips, Charging cable, User Manual, Warranty Registration Certificate Number of items: 1 Microphone format: In Ear Headphones form factor: In Ear Power Source: Battery Powered Batteries Included: Yes Batteries Required: No Battery cell composition: Lithium Ion Cable feature: Without Cable Connector Type: Bluetooth 5.1 Form Factor: In_ear Includes Rechargeable Battery: No Item Weight: 100 g