About this item 60 hours of total playtime – Mammoth battery power makes the Z40 earbuds stop at nothing. 10 mins charge = 100 mins playtime. Lightning Boult Type-C fast charging makes this possible, getting your buds ready in no time. Zen Mode – The Environmental Noise Cancellation mode wards off unwanted noise, making your calls crystal clear. Low latency gaming – Have an uninterrupted gaming experience with no lags 10mm BoomX tech drivers deliver deep, dynamic bass that adds the much-needed thrill to your entertainment.