B2 Bone Conduction Bluetooth 5.0 Headset Neckband 16GB Earphone Wireless Sports Music Headphone

• Built-in 180mAh lithium battery, low power consumption 5.0 chip, support intelligent fast charging and uninterrupted music playback
• The noise reduction technology identifies human voices and noises, improving voice clarity, and making calls like face-to-face
• Titanium alloy body, free to bend without deformation, flexible but strong
• Adopting bone conduction, no need to plug into ears, no eardrum damage, more comfortable and healthier
• 16G large capacity, can store about many songs, which allows for listening to songs while exercising without bringing your phone

Specifications:

• Product size: 160x102x45mm
• Product weight: 30g
• Bluetooth version: V5.0
• Bluetooth chip: Bluetrum
• Bluetooth protocol: HSP/HFP/A2DP/AVRCP/BLE
• Bluetooth chip: BT8852
• Transmission distance: ≤10 meters
• Talking distance: <10 meters
• Microphone: -42±3dB
• Audio signal to noise ratio: 90dB
• Response frequency: 80-5000Hz
• Vibrator unit: Φ16, 7.5Ω±15%, 86±5dB, 45mW
• Charging input: type-c, DC 5V/0.5-1A
• Battery type: 3.7V lithium battery, 180mAh
• Working time: about 7 hours