Stheanoo Bluetooth Earbuds Earphones for Fine Blue X9 Plus Bluetooth Headset 5.0 Twin Belt Charging Box Bluetooth Headset Wireless Quick Connect Smart Earbuds for Men and Women

Description

Color:Silver Description:Characteristic：    Compatible devices: Bluetooth-enabled phones, tablets, computers, watches, MP4, speakers.    Bluetooth profile: HSP1.2, HFP1.7, A2DP1.3, AVRCP1.6    Standby time: up to 200 hours    Battery type: rechargeable lithium ion polymer battery    Battery capacity: 40 mAh (with 580mAh convertible battery box)Declaration:    Profile：Support HFP17 HSP1.2 A2DP1 3AVRCP1.6 SPP1.2    Transmit power：Class 2 (-6dbm-4dbm)    Transmission distance： about 15M    Charging voltage:5V    Earbud Battery：40MAH    Music time：4H (about 20 hours with charging box）    Talking time：about 5H    Earbud Charging time: about 1. 5H    Standby timeabout：720H    Speaker impedance:16+15%9    Sensitivity:100+/-3DB    Speaker size:6×4.8mm    Microphone size：37×22×1.2mm    Microphone Sensitivity: -42+/-3db    Charging box Battery:11×26×22/580MAH    Charging voltageBox Charging time: 1.5H (t can support additional 4 timescharging）    Compatible devices: Android, OS (bluetooth-enableddevices are basically compatible)Packagecontents:    1X Headphone Warehouse    2X Headphones    4X Earcaps    1X Instructions    1X Charging Wire