Color:Dark Brown Features: Made of good quality materials, smooth surface, great texture.  Great stereo sound quality, clear and low noise. Compatible with bluetooth version 5.0, fast transmission speed, long transmission distance, up to 15-20m. Support microphone noise reduction, clear call. Perfect fits your ear, ergonomic design, convenient in-ear design, you will feel comfortable and painless even in long time use.  Suitable for making call while driving, running, doing sports, voice control, etc.  Specification: Condition: 100% brand new Model: E12 Material: ABS Color: red, green, coffee (optional) Compatible with bluetooth 5.0 (RTL8763B(24bit/192kHZ) Headphone battery capacity: 3.7V /60mAh Charging time: 40-60 minutes Playback: 6 hours + Charging box capacity: 750MA Charging box size: 58x40x30.6mm/2.3x1.6x1.2inch Charging box charging time: 40-60 minutes Charge the earphone: 4 times Sound unit: 10mm moving coil horn Wireless frequency: 2402-2482MHZ Transmission distance: 15-20m Support protocol: HSP/HFP/A2DP/AVRCP Sensitivity: 120+5db Frequency response range: 20-20000HZ Impedance: 32 Ω  Package List: 2 x Earbuds 1 x Charging Box 1 x Manual 12 x Ear Muff 1 x Storage Bag 1 x Charging Line
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