Using advanced noise-reduction technology, Flux 7 TWS earphones have been designed to reduce unwanted noise during exercise. With an onboard 2,000mAh polymer lithium battery that offers 5 hours of standby time, Flux 7 TWS earbuds are ideal for fitness enthusiasts who want to pack light and move fast. Suitable for sports, waterproof and sweatproof, enjoy music on rainy days and when exercising.Voice assistant. Press for 2 seconds to arouse the voice assistant & make it more convenient for you to enjoy musicAuto pairingTaken out of the charging cabin, the earphones are automatically started up & automatically pairedPut into the charging cabin, the earphones are automatically shut down, disconnected & begin to chargeIntelligent quick chargeWith the built-in 2000mAh polymer lithium battery in the charging bin, the cabin body can be quickly charged and standby time reaches up to 5 hoursLarge battery multifunctional charging case (as power bank for phone)Intelligent noise reduction. Helps exclude the noises when in noisy environmentStrong compatibility. Compatible with iOS & Android system as long as your cellphone supports bluetooth functionIPX4 waterproof level. Suitable for sports, waterproof & sweat proof, enjoy music in rainy days and when exercisingSpecifications - Bluetooth 5.0Waterproof Level - IPX4BT transmission distance - 10m barrier-freeBattery capacity of charging case - 2,000mAhBattery capacity of earphones - 40mAhCall duration - 4hMusic duration - 4hHeadphone charging Time - 1hCharging time of the box - 2hStandby time - 120hIncludesFlux 7 TWS Earbuds with Wireless Charging Case & Power Bank (White)USB Charger CableManualNote - The mobile phones and computer showed in the picture are not included.