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 Earphone