The ergonomic bone conduction ear hook design is painless and comfortable to wear. Use CC6.0+DSP noise reduction technology to improve music quality. The microphone allows you to answer calls without making calls. Type: Bluetooth headset Quantity: 1 piece Bluetooth: V5.0 Wireless distance: 10 m (approximately) Battery: 70mAh rechargeable battery (included) Charging time: 1.5 hours Charging port: Micro-USB Music time: 4.5-5.5 hours Features: bone conduction, ear hook design, ergonomics, with microphone, stereo Dimensions: 3.9 cm x 7 cm x 0.7 cm / 1.54"x 2.76" x 0 .28" (approximately) Note: Due to different lighting and screen settings, the color of the product may be slightly different from the picture. Due to different manual measurements, please allow slight size differences. Package includes: 1 x Bluetooth headset 1 x User Manual 1 x charging cable