Description: Applicable models: Suitable for all mobile phones and smart devices with Bluetooth function. Ergonomic and super lightweight portable design ensures a secure, comfortable fit for most ears. Lossless HD sound quality and crystal crisp treble, enjoy your music moment even in a loud environment. Two connection methods: single / double free to use, single ear listening to enjoy alone, listening to HiFi stereo in both ears. The bluetooth headset adopt the most advanced Bluetooth 5.0 technology for faster, more stable transmission speeds, longer transmission distances and lower power consumption, wireless connectivity and automatic pairing. Specifications: Earphone material: PC material. Colors: black. Size: show as pictures. Bluetooth version: V5.0. Noise reduction version: CVC8.0. Working distance: about 10 meters. Single ear capacity: 50 mAh. Charging room capacity: 1500 mAh. Music time: 120 hours (used with the charging compartment). Talk time: 150 hours (with charging compartment). Earphone charging about: about 25 times. Charging chamber input current: 5V1A. Sensitivity: 123±5db. Resistance: 32Ω. Frequency response: 20-20KMHz. Channel: Stereo. Waterproof rating: waterproof, (not exposed to hot water). Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package include: 2 * Earphones (left and right ears). 1 * Charging Box. 1 * Charging cable. 1 * English manual. Packing list