Sleeping Eye Mask Bluetooth Music Calling Headset Wireless Headphone Elastic Sports Headband

This Bluetooth headband sleeping headphone creates a private space for you. It is a good companion for sleep and sports that can help you eliminate fatigue, improve sleep and give you more energy to work and study. Fits different kinds of occasion such as indoor, outdoor, camping, or taking all kinds of transports.

• Sleeping earphones & wireless earphones & sports headband 3-in-1 design

• The sleep mask is made of durable braided rope, breathable mesh lining, very soft and lightweight, easy to stretch, suitable for all head sizes

• With a speaker of 0.11 inches thick, sleepers feel more comfortable

• HiFi stereo sound, helpful to adjust the external noise, let yourself fall asleep

• Built-in microphone so that you will not miss any calls

• Very suitable for fitness, exercise, running, yoga and other outdoor activities

Specification:

• Bluetooth version: 5.0

• Frequency: 2.402GHz-2.480GHz

• Transmission distance: 44 feet (15 m)

• Battery: (lithium polymer battery) 3.7 V 150 mAh 

• Transmission distance: ? 1M

• Playtime: up to 8 hours

• Standby time: up to 120 hours

• Charging time: 2 hours

• Material: 95% polyester fiber + 5% spandex