Bakeey E2 Bone Conduction Neckband Earphone Wireless bluetooth Headphone Stereo Sports with Mic

Specification: Model: E2 Color: Black, Grey, Red Headphone size: 16x25x22mm/0.62x0.98x0.86'' Net weight: 3g Packing weight: 18g Main chip: bluetooth master IC AB1522S QFN5*5 Working frequency: ISM band (2.402-2.480GHZ) Emission power: Class2 (-6dbm-4dbm) Maximum output power: 8mW Rated output power: 5mW Antenna: bluetooth distance: 10 meters bluetooth antenna: built-in antenna: 2.45G Physical keys: 3 (switch key / volume + -) bluetooth protocol: A2DPV1.3 AVRCPV1.5 HFPV1.6 HSPV1.2 bluetooth version: BT V4.1 Electroacoustics: MIC silicon Mic; sensitivity: -42+/-3db Speaker: 9 horn, 0.5W, 16 ohm +/-2.4 ohm, sensitivity 104+/-3db Power: rechargeable polymer lithium battery 041035 Battery capacity: 110mAh Working voltage: 3.7V Charge voltage: DC-5V 500mA Standby time: 10 days Play time: 6 hours USB port: Micro USB 2.0 patch all post USB Length: 5mm Shell: injection PC+ABS Horn cover: silicone steel wire (nickel titanium alloy steel wire) Package included: 1 x Bakeey E2 Bone Conduction EarphoneПроизводитель: Bakeey