About this item 【TWS & BT 5.0】 - Adopt the most advanced Bluetooth 5.0 technology Support HSP HFP A2DP AVRCP Provides in-call stereo sound Also own fast and stable transmission without tangling. 【Hi-Fi STEREO SOUND QUALITY】 - Offer a truly authentic sound and powerful bass performance with 8mm large size speaker driver - the drive area is 1.77 times than the normal drive area. 【ONE STEP PAIRING】 - Pick up 2 headsets from charging box They will connect each other automatically then only one step easily enter mobile phone Bluetooth setting to pair the earbuds. 【IPX8 WATERPROOF】- Earbuds and charging case inner Nano-coating makes it possible to waterproof for 1 meters deep for 30 minutes. It is suitable for sports to prevent water. Ideal for sweating it out at the gym . Even Wash the earbuds and base. 【CHARGE ON-THE-GO】-Such wireless earbuds can last for over 4 hours' playtime from a single charge and 14 extra hours in the compact charging case. Charging case support wireless charging. Providing convenient charging way with no strings attached.