Feature:1. - BT 5.3 chipset offers more stable and faster connection with BT-enabled devices.2. - 8mm speaker unit can deliver 8D surround sound. CVC 8.0 noise cancelling technology provides clear binaural call.3. - 2400mAh charging case with exquisite texture and magnetic cover lasts long playtime and brings more life convenience.4. - Ergonomic design and soft silicone eartips ensure comfortable and stable wear even for a long time.5. - Comes with LED-digital display to clearly show you the battery remaining level.6. - The left and right earbuds can be used together or independently.7. - Large capacity can charge your mobile phone as a power bank.Specification:Features:- BT 5.3 chipset offers more stable and faster connection with BT-enabled devices. - 8mm speaker unit can deliver 8D surround sound. CVC 8.0 noise cancelling technology provides clear binaural call. - 2400mAh charging case with exquisite texture and magnetic cover lasts long playtime and brings more life convenience. - Ergonomic design and soft silicone eartips ensure comfortable and stable wear even for a long time. - One-click touch-control, easy to switch songs/answer calls/adjust volume/summon voice assistant, etc. - Comes with LED-digital display to clearly show you the battery remaining level. - The left and right earbuds can be used together or independently. - Large capacity can charge your mobile phone as a power bank. - Sweat-proof and water-resistant design, no fear of rainy day. Note: * Please read the user manual carefully before use.* There may be slight errors due to manual measurement. Specifications:Model: F9-6 Color: BlackBT Version: 5.3Music Time: 5-6HCall time: 5-6HCharging Time: 1-2H Standby Time: 650H (with charging caseWorking Distance: 10-20mWorking Temperature: -10~55 Headphone Battery Capacity: 50mAh / single Charging Box Battery Capacity: 2400mAh Item Weight: 82g / 2.89ozPackage Size: 11.2 * 9 * 4.5cm / 4.41 * 3.54 * 1.77inPackage Weight: 113g / 3.99ozPackage List: 2 * Earbuds (Left & Right) 1 * Charging Case 3 * Pair of Eartips (One pair on the earbuds) 1 * Charging Cable 1 * User Manual (English)Package List:2 * Earbuds (Left & Right) 1 * Charging Case 3 * Pair of Eartips (One pair on the earbuds) 1 * Charging Cable 1 * User Manual (English)