Supreme Comfort- Using skin-friendly liquid silicone neckband material. You are free to wear NB2 for intensive workout without annoying statics and friction.
Ultra-long battery life- NB2 provides up to 15 hours playtime for music with its 200mAh built-in battery. Neckband design share the weight of the earphones evenly on your shoulder. You could barely feel the earphones with you.
High quality MEMS microphone- NB2 comes with built-in anti-interference microphone which keep the transmission stable even on the subway and crowded places. A satisfactory conversation is guaranteed wherever you go.
Best earphones for sports- No bother Jogging in small rain or sweating in the Gym.