Smart Retractable Business Wireless Headset delivers crisp, balanced sound with reliable wireless performance for work, study, travel, and workouts. Designed for all‑day comfort, it pairs quickly, holds a stable connection, and keeps you focused with clear audio and an ergonomic fit. Perfect for music, calls, and meetings. Key details: Wireless version:V5.3 Operation range: 10M Talk time:10H; Music time:12H Standby time:150H; Battery capacity:110mAh/3.7V Charge time:1.5H; Charge port： Micro.