Product information: Color: black, white, creamy-white Transmission range: 10 meters Chip type: Jerry Battery life: 0-4 hours Function: waterproof, noise reduction, breathing light, support music Material: PC ABS Usage: in-ear Style: sports style Product name: Wireless binaural Bluetooth headset Call duration: 3 Model: J11 Charging time: 1.5 Bluetooth version: V5.3 Microphone sensitivity: -42±3db Battery type: polymer lithium battery Bluetooth protocol: Headset handfree A2SP AVRCP is supported Transmission frequency: 2.4GHz (2402-2.4080GHz) Horn resistance: 32Ω±15% Working distance: 10 meters Microphone sensitivity: -42±3db Headset battery: 40 mAh Microphone resistance: 2.2kΩ Charging bay battery: V3.7300mAh Regular color: Black white skin tone Playback duration: 3.5