Lenovo HE05 is a neckband-style earphone with a flexible, lightweight design for comfortable all-day wear. It features high-quality audio drivers for clear sound, and an in-line remote for convenient control of music and calls. It is sweat-resistant and has a magnetic earbuds for easy storage. Silica gel neckband Metal shell IOS electricity display Volume control Tactile player/Pause/Play Answer/Hang up Bluetooth version: V5.0 Battery capacity: 105mAh Play time: >6 hours Standby time: Approximately 120 hours Horn diameter: 10mm Speaker sensitivity: 98dB+3dB Frequency response range: 20-20k Hz Distance: 10m barrier-free Wearing method: Neckband in ear