Ключевые слова: 40s, biosensing, blue, cheerful, club, clubber, clubbing, colors, concert, dance, dancer, dancing, design, digital, disco party, disk, display, dj, emotions, fashion, father, hair accessory, happy, headphones, headset, innovation, interactivity, listening, male, man, middleaged, midlife, moodresponsive, music, nightclub, parent, professional, smiling, tech, technology, trend, wearable, work life balance,