OPPO Enco Air4 True Wireless Noise Cancelling Earbuds *กรณีสินค้ามีปัญหาเรื่องการใช้งานลูกค้าต้องไปติดต่อที่ศูนย์บริการภายใน 7 วัน หลังจากเปิดใช้สินค้า* Product Name : OPPO Enco Air4 Color : Silky White / Fresh Mint Chipset : BES Model : ETEE1 Smart Adaptive Noise Cancallation : Up to 32dB Transparency Mode : Yes Driver : 12.4mm Dynamic Driver Driver sensitivity : 112±3dB Frequency response range : 20Hz - 20kHz Microphone sensitivity : -38dBV/Pa Microphones : 2 Mics per side Bluetooth® codec : AAC/SBC Bluetooth® version : Bluetooth 5.4 Bluetooth® range : 10m Google Fast Pair : Support Dual Connection : Support Battery type : Rechargeable Li-ion Cell Battery capacity : 58mAh (Earbuds) / 440mAh (Charging Case) Music playback (AAC , 50% volume) ANC OFF : 12h (Earbuds) / 43h (Earbuds+Case) ANC ON / Transparency mode : 8h (Earbuds) / 28h (Earbuds+Case) Charging Interface : USB Type-C Fast-Charging : 10 mins for 4 hours (Earbuds, 50% volume, AAC, ANC OFF) 10 mins for 11 hours (Charging Case + Earbuds combinded, 50%volume,AAC,ANC OFF) Charging time: 60min (Earbuds) / 80min (Earbuds + Charging Case) Charging Input (charging case) : 5V-1A Charging Input (earbuds) : 5V-0.2A Charging Output (charging case to Earbuds) : 5V-0.4A Dust & Water Resistance (Earbuds) : IP55 Weight: 4.2g (Earbud) / 37.8g (Charging Case) / 46.2g (Overall product) Earbuds Size: 29.99 x 20.30 x 23.87 mm. Case Size: 66.60 x 51.24 x 24.83 mm.