For TCL 40 XL/XE/X/NxtPaper — Ear-hook Open-Ear TWS Bluetooth Earbuds Over-the-Ear Headphones with 500mah Charging Case, Hands-free Mic, True Wireless Stereo

Open-ear ear-hook design prevents the discomfort associated with in-ear or fully over-ear models while keeping the ear canal cleaner and more hygienic. You can still hear ambient sounds while enjoying music thanks to the open-ear form factor. Sound is delivered in hd stereo audio with strong bass and noise cancellation technology for clear playback and calls. The headphones include a built-in microphone for hands-free calling. Controls are physical buttons on the earbuds. Press the button 1 click to pause or play the music; 1 click will also answer or shut off the call. For volume and track control: left headphone 2 clicks button to decrease volume, right headphone 2 clicks button to increase volume, and left headphone 3 clicks for last song. Auto pairing & connection: when you take the wireless earbuds off the charging case they automatically power on and pair with each other (voice prompt: "pairing"). After the two earbuds complete pairing, connect them to your phone via Bluetooth. The mini portable charging case has a built-in battery, led display and a 500mah capacity; it charges the earbuds automatically when they are returned to the case and can recharge your earphones up to 5x. Each earbud supports independent mode with separate volume and track controls so you can use a single earbud alone. The product is equipped with an advanced chip to enhance performance.