120H EXTRA-LONG PLAYTIME: Our TERUBIN neckband bluetooth headphones with low-power technology are built-in 1000mAh battery that can be fully charged in 3Hrs with Type-C charging port and played continuously for 120Hrs. If you're in a hurry to go out, our headphones can be used up to 10H after 10 minutes of charging, so you can easily cope with the unexpected work. HIGH-QUALITY HIFI STEREO SOUNDThe bluetooth neckband headphones is customized with a balanced armature driver for each earbud to ensure good balance between low, high and mid-range frequencies and offer you with high-quality hifi stereo sound and deep bass. The cavity made of aluminum alloy ensures the stability of the sound without being affected by external signals. The neckband earbuds with microphone provides clear phone calls. MAGNETIC & NECKBAND DESIGN: Magnetic self -absorbing design can effectively prevent the headphones from being lost or wrapped, convenient for storage and movement, and mo