Wireless Headphones Bluetooth Headphones With Microphone Stereo Headset For Mobile Phone Features: Bluetooth compatible headset adopts Bluetooth compatible chip 5.1, with fast and stable transmission speed and strong -interference ability. Ergonomic design makes it comfortable to wear. It can be used with all Bluetooth-equipped devices. The headphones are so lightweight, you'll forget you're wearing them. Running and exercising are no problem as the earlobe is firmly in place when worn. With design, it can be used even when wet with sweat. Using ABS materials and electronic components, the wireless headset is and. Full of a sense of technology, say goodbye to cumbersome pairing, pick up the Internet with seconds of power on, experience the wireless sound. Suitable for your home, office, travel, sports and other. Product Description: Model name: Q31 Bluetooth version: Bluetooth V5.1 Bluetooth frequency band: 2.4GHz Speaker specification: φ 10mm16Ω Wind sensitivity:-42db/3db Transmission distance: ≤ 10m Headphone battery capacity: 30mAh Battery capacity of charging box: 300mAh Charging interface: Type C Working hours: 4-5 hours Charging voltage: DC5V Charging time: about 1 hour. Package includes: 1 x Bluetooth Earphone (L&R) 2 x pairs of ear caps 1 x Charging box 1X USB charging cable 1 x user manual