1.5.1 Ultralight business earphone uses 5.1 connectivity with DSP voice data processing for safe, stable and fast performance. DIAPHRAGM SPEAKER UNIT: The wireless earpiece uses a diaphragm speaker unit with equalization adjustment technology and fine tuning, delivering layered and detailed sound. NOISE REDUCTION: Built in CVC noise reduction technology shields ambient noise to reduce interference during calls. FAST CHARGING: Built in capacity lithium battery supports fast charging and long battery life. Benefits at a glance: lightweight design for extended wear, clear voice transmission, stable performance, and efficient charging for greater uptime. Use scenarios: On the go or in the office for business calls, where clear voice and stable performance are important. Online meetings from home or coworking spaces, benefiting from detailed sound and DSP processing. Travel or commuting in noisy environments, with CVC noise reduction to minimize ambient interference.