Model: M18 Color: Black Horn Diameter: 8mm/0.31" Chip: ChinaCache Bluetooth Version: 5.1 Noise Reduction Version: CVC8.0 Battery Capacity: 50mAh Charging Case: 2000mAh Transmission Distance: 10 Meters (Obstacle Free) Play/Talk Time: About 4-5 Hours Earbud Charging Time: About 1-2 Hours Connection Method: Single/Double Control Method: Touch Operation Material: Ceramic Antenna+F6 Horn+4 Layers Motherboard Waterproof: IPX7 Daily Life Waterproof Features: LED Display, Power Bank, 9D Stereo Sound Applicable Models: Suitable for all mobile phones and smart devices with bluetooth function Features: 1. The earphones adopts Bluetooth 5.1 chip, which can provide fast and stable connection. 2. Equipped with 2000mAh charging compartment, with digital power display, support USB OUT, and with flashlight function, can be illuminated. 3. Upgrade LED power display, intuitive to know the electricity level. 4. The magnetic switch of the charging box protects the charging box. 5. Wireless binaural design, touch control, left and right ear canal separation, can be used alone or on the ear. 6. Operational function upgrade, one touch to switch previous/next song & volume adjustmentwake up assistant. 7. Can be used for earphone storage box and charging for earphone, can be power bank to charge mobile phone and mobile phone holder. 8. Enjoy & 9D Heavy Bass: Enjoy the HIFI sceneand enioy the immersive 9D stereo surroundsound effect. 9. CVC80 Intelligent Noise Reduction: Enjoy HD call effects without being affected by noisy environmen. Package Included: 2 x Earbuds (Left + Right) 1 x Charging Case 1 x USB Cable 1 x User Manual Note: 1. Please allow 1-2cm measuring deviation due to manual measurement. 2. Due to the different monitor and light effect, the actual color of the item might be slight different from the color shown on the pictures.