The Creative Zen Hybrid 2 is expertly tuned to deliver clear highs and balanced mids with its specially tuned 40mm dynamic drivers. Four dedicated feedforward and feedback microphones for Hybrid Active Noise Cancellation (ANC) microphones to remove a wider range of ambient noise down to -30dB. The Creative Zen Hybrid 2 has a total battery life of a whopping 67 hours - a quick 5-minute boost gives you 5 hours of listening pleasure.