• Bluetooth technology with simultaneous connection capability for two devices. • Retractable cable system with button to avoid tangles and facilitate storage. • Intelligent alert via integrated vibration to notify of incoming calls. • Stable fixing clip for a secure attachment to clothing. • Battery life of up to 12 hours for music and calls. • Lightweight design with a weight of 30 grams for comfortable daily use. • Integrated microphone for hands-free functions. • Headphone frequency response from 20 to 20000 Hz and sensitivity of 95 dB.