NIA S4000 Wireless Over the Ear Hi-Fi Stereo Headphones

DetailsNIA S4000 Wireless BT Over the Ear Hi-Fi Stereo HeadphonesMultifunctional: NIA S4000 equipped with a BT connection, TF card music play, AUX-IN wired music play, FM radio, and hands-free calling with a microphone. AUX-IN function: NIA S4000 Connect to audio devices (MP3/MP4, laptop, etc.) without BT function with a 3.5mm audio cable (not included). Long battery life: NIA S4000 has a Built-in 250mAh rechargeable battery, which lasts up to 10 hours of music playtime per charging cycle. Ergonomic design: Adjustable headband length, foldable soft leather ear cushion, comfortable to wear and easy to store. High-sensitive microphone: HD microphone reduces ambient noises and grasps voice details. You can get high-quality hands-free phone calls.Specification:FunctionWireless and Wired connection, support TF Card/FM Radio play, APP controllingAudio interface3.5MMFrequency20Hz-20KHzImpedance32ΩDriver Unit40MM HD Driver UnitStandby Time200HoursCharging Time2 HoursWorking Time6-8 HoursBattery250mAhTransmission Distance10M Package Includes:1* Headphone1* Charing Cable1* User Manual Specifications—