Specifications: Product model: K69 Product Name: Neckband Headphone Product Color: Black Product Weight: About 80g Canpacity of Earphones: 180mAh Music Time: About 10 Hours Calling Time: About 8 Hours Charghing Time: About 3 Hours Bluetooth version: 5.0 Earphone Type: ear hook Microphone: yes Noise Reduction: active Playback Control: Yes Waterproof: yes Maximum wireless range[m]: <10m Feature 1: Noise Cancelling Feature 2: IPX5 Waterproof Feature 3: 360° Bend Arbitrarily Feature 4: Low Delay Feature 5: Long Battery Life Feature 6: HD Call Product Features: 1. Bluetooth 5.0 Chip, More Stable 2. Stereo HiFi Music, Enjoy Your Music 3. IPX7 Life Waterproof 4. Bone Conduction, Not Hurt When Listen To The Music 5. Longer Music Time Feature 1: Noise Cancelling Feature 2: IPX5 Waterproof Feature 3: 360 Bend Arbitrarily Feature 4: Wireless Earphones Feature 5: Air Conduction Headset Feature 6: Bluetooth Headphones Feature 7: Wireless Headphones Feature 8: Bluetooth Earphones Feature 9: Wireless Earphones Feature 10: Bluetooth headset Feature 11: Wireless Bluetooth Earphone Feature 12: wireless bluetooth headset Feature 13: hifi stereo earbuds Feature 14: headphones for iphone Bluetooth Package includes: 1 * Headphone 1 * Charging Cable 1 * User Manual