Signature sound pristine Bang & Olufsen signature sound comes through loud and clear with BeoPlay E8 wireless earphones Tuned by acclaimed Bang & Olsen engineers The earphones boast a rich authentic sound with a subtle and elegant design Perfectly suited to your busy lifestyle these sleek in-ear Bluetooth headphones offer a truly wireless way to listen to music and take calls while you’re on the go A case for quality an included leather wireless charging case features a beautiful brushed aluminum inlay that securely surrounds your earbuds with a quick magnetic click This convenient charging case provides up to three additional on-the-go charges four hours each for a total of 16 hours of playtime Qi-certified for wireless charging the charging case is perfectly complemented by the efficient B&O Qi charging pad sold separately High tech meets high style The luxurious design of Bioplays E8 is supported by its effortlessly high-tech performance Advanced Bluetooth 4 2 with DSP allows for sound tuning equalization and gain while the dynamic speaker and electronic transducer of these in-ear headphones deliver premium sound quality These Bluetooth earphones are crafted with Near field magnetic induction (NFMI) an innovative audio streaming technology used in hearing aids to reduce dropouts between earbuds Intuitive touch interface simply tap these earphones to change your tune or answer a call The easy-to-use touch interface lets you switch between tracks take calls and activate voice commands without having to take your smartphone out of your pocket It even lets you activate the transparency Mode which quickly and safely reconnects you with ambient noises around you Impeccable design signature sound pristine Bang & Olsen signature sound comes through loud and clear with Bioplays E8 wireless earphones Tuned by acclaimed Bang & Olsen sound engineers The earphones boast a rich authentic sound with a subtle and elegant design Perfectly suited to your busy lifestyle these sleek in-ear Bluetooth headphones offer a truly wireless way to listen to music and take calls while you’re on the go A case for quality an included leather wireless charging case features a beautiful brushed aluminum inlay that securely surrounds your earbuds with a quick magnetic click This convenient charging case provides up to three additional on-the-go charges four hours each for a total of 16 hours of playtime Qi-certified for wireless charging the charging case is perfectly complemented by the efficient B&O Qi charging pad sold separately High tech meets high style Impeccable design Bioplays E8 is crafted with quality materials for a sleek and functional finish The clean and minimalist design of the earbuds charging case and optional Qi charging pad complement each other beautifully Hairline brushed aluminum cowhide leather and silicone materials not only look great but are strong enough to stand up to the daily wear and tear of your busy life Frequency 20 - 20 000 Hz Impedance 16 Ohm Cord 1 25 m USB-C to micro USB cable for Charging Earphones Battery Right - 85 mAh Left - 60 mAh Sensitivity 107 dB SPL /-3 dB ref 1 mW at 1 kHz