OnePlus is offering discounts on its power banks, and true wireless earphones OnePlus Buds and OnePlus Buds Z as part of the Final Horizon sale on its website. The promo runs from March 5 to March 8, and includes a teaser for a new announcement on the final day. The OnePlus Power Bank is available for ₹888, while the OnePlus Buds Z can be bought for ₹2,849. The more premium OnePlus Buds can be bought for ₹4,491. OnePlus is widely expected to announce the OnePlus 9 series of smartphones on March 8.