Clip on Design: The earphone adopts a compact clip on design, which is easy and convenient. It does not need to put a pocket on the collar. Silicone: The earphone adopts a special silicone ear cap, which is suitable for talking on the phone for a long time without pain. High definition: The headset is used for high-definition calls, and the intelligent noise reduction technology is specially designed for busy people. Anti loss vibration: When the mobile phone is 10 meters beyond the connection range, the headset will vibrate to remind you to prevent losing the mobile phone. Vibration reminder: When you call, the earphone motor vibrates to remind you. It's good to answer important calls. Specification: Material: ABS. Color:black, white, gold, sliver, gary, red. Product model: f910. Bluetooth version: V5.1. Transmission distance: 10M. Battery: 100 Mah. Charging time: 1-2 hours. Talk time: up to 10 hours. Playback time: up to 10 hours. Standby time: up to 160 hours. Bare metal size: approx.5.5 x2.7x1.5 cm/2.16x1.06x0.59 inches. Color box size: approx.20 cmx7.5 cmx3 cm/7.87x2.95x1.18 inches. Package Includes: 1 Piece Large Ear Cover. 1 Piece Small Ear Cover. 1 Piece Micro Charging Cable. 1 Piece Instructions in Chinese and English. 1 Piece Clip on Headset.