**Product Specifications:**

**Brand:** Masentek

**Usage Time:** Up to 25 hours for listening to music and making calls

**Bluetooth Technology:** Latest Bluetooth 5.0 for seamless connectivity

**Caller Name Announcement:** Incoming calls announce caller's name

**Comfortable Fit:** Designed for comfortable and secure wearing, with no delays in music playback or calls

**Clear Calls:** Enhanced with ENC noise reduction technology for crystal clear calls

**Volume Boost:** Improved speaker and microphone for increased volume levels

**Long Battery Life:** Large capacity battery for extended usage, up to 25 hours

**Compatibility:** Compatible with a wide range of devices including Apple, Huawei, OPPO, VIVO, Xiaomi, Samsung, LG, and more

**Noise Cancellation:** Smart dual noise cancellation technology for clear calls and music

**High-Quality Sound:** Premium speakers and quality chip for lossless audio

**Comfortable Wearing:** Lightweight design (only 13g) with ergonomic fit for all-day comfort

**Rotating Earpiece:** 180° rotatable earpiece for wearing on either ear

**Ear Hook Design:** Secure ear hook design for stability during activities like running or fitness

**Dual Connection:** Smart dual connection for connecting two devices simultaneously

**Battery Indicator:** Real-time battery level display for easy monitoring

**Button Functions:** Simplified button controls for easy operation

**Accessories:** Includes packaging box, waterproof bag, user manual, earphones, ear tips, and charging cable

*Note: The above specifications are based on testing at 70%-80% volume in experimental conditions. Actual usage may vary depending on the device and volume settings.*