Bluetooth 5.3 & Long Battery Life- The Bluetooth neckband earphones are equipped with Bluetooth 5.3 and advanced chip which provides for a faster pairing stable connectivity with your Bluetooth enabled cell phones tablets laptops TV and many more. And the large capacity Lithium battery allows you to enjoy hand-free calling or listening to music without having to worry about running out of battery.It can last 200 hours playing on a full charge and 365 days on standby. Bluetooth & MP3 Dual Mode - The newly upgraded neck Bluetooth headset supports TF card. The wireless Bluetooth of the neck headset can not only wirelessly connect to the mobile phone but also support the insertion of TF card. After turning on the headphones you can simply insert the TF card filled with your favorite songs into the card slot and enjoy wonderful music. There is no need to worry that you cannot enjoy great music when your phone runs out of battery. It is the best choice for outdoor activities. Power Display & Noise Reduction - Equipped with four power displays you can timely check the power status of the headset. The ENC call noise reduction feature can eliminate the interference of ambient noisy sounds ensuring a clearer call. Built-In Magnet and Comfortable Wearing - The built-in magnet in the ear buds enables them to attach to each other when not in use presenting a more necklace-like appearance for convenient and tangle-free storage. Furthermore the ergonomically designed flex neckband composed of ultra-soft high-quality materials and crafted exquisitely is bendable and comfortable perfectly matching your lifestyle. In-Line Control Buttons- Without touching the phone you can easily operate the control key on the headset for changing songs answering calls or adjusting the volume and calling the voice assistant etc.Very easy to use. Waterproof Technology-The Bluetooth wired earphones are IPX7 waterproof and sweat proof rated so that you can do have to compromise on audio performance even during light rain or sweat making it a perfect choice for running jogging hiking climbing bicycling yoga gym workouts and other sports you like.