s900 TWS Wireless Bluetooth-compatible 5.1 Earphones Air Conduction Headphones with Charging Case for Running Hiking Driving Cycling - Black

• In contrast to in-ear earphones, this earphone makes you a burden-free wearing. It can avoid some dangerous situations from happening as you can also hear the surrounding sound when you use it to listen to music
• The open ear design helps you achieve the true painless and harmless as the earphone is no need to plug into the ear canal
• It can keep on your ear when running, dancing, or wearing glasses
• Produce stereo sound, making the call clear and stable. Built-in mic for hands-free phone calls clear and stable
• Quick connection, it will automatically connect when powered on
• The digital screen for showing the remaining power

Specification:

• Charging case battery: 400mAh
• Earphone battery: 80mAh
• Cell voltage: 3.7V
• Battery life: >300 times
• Talk time: about 8 hours
• Music play time: 10 hours
• Standby time: 80 hours
• Sensitivity: 112.5±3dB
• Impedance: 32Ω
• Frequency response: 200HZ~20KHZ
• Input: 5V 0.5A~2A