NIA S4000 Bluetooth Wireless Headset 40mm Deep Bass Drivers Built-in Premium Wireless Microphone Foldable Headphone

Description 40mm Ultra Bass Drivers: Experience deep, ground-shaking, and crystal-clear audio reproduction with 40mm bass drivers and an ultra-wide frequency response from 20 to 20,000 Hz for super-clear mid-tones and crisp highs, perfect for the Seamless streaming of music and movies on the palm 30-Hour Battery Life: Enjoy up to 30 hours of uninterrupted, immersive audio on a single charge with high-capacity, memory-free lithium-ion batteries. Dive into the longest audio books, marathon mobile gaming sessions, and awesome playlists Bluetooth 5.0 Call Handling: Bluetooth 5.0, 2 Mbps data transfer for up to 33 feet of incredible wireless performance. Easily pairs with our proprietary app and high-sensitivity built-in microphone for ultra-clear voices and seamless, one-touch wireless call handling Excellent Noise Isolation: Forget cheap plastic earbuds, our Bluetooth wireless headphones use the best surround memory proteins to completely block out excess background noise, for ultra-immersive audio anywhere Durable, Collapsible & Fully Adjustable: Extra strong reinforced headband with detailed stitched faux leather top easily adjusts to smaller and larger heads for the perfect fit. Crush resistant, lightweight and foldable, ideal for everyday carry on the go. Specifications: Brand & Model: NIA S4000 Audio Interface: 3.5MM Frequency: 20Hz-20KHz Impedance: 32Ω Driver Unit: 40MM HD Driver Unit Function: Wireless and Wired connection Features: BT, TF Card, FM Radio Play, APP Controlling Standby Time: 200Hours Charging Time: 1-1.5 Hours Working Time: 8-10 Hours Battery: 250mAh Transmission Distance: 10M