Shenzhen Electronical Technology Co., Ltd.  

Product Name: Logic Sky K38 Bluetooth Headset Earbuds Model NO.: K38 Distance version: Class A Specifications: HFP Color: Black Characteristics: Support Music Function: Bluetooth, Multimedia Soundtrack: Dual Track Bluetooth Version: V5.0 Usage: Mobile Phone, Computer, Game Player Style: In-ear Origin: Shenzhen, China Product Description ProductSpecification:Bluetooth Version:V5.0Stand-by Time:20days Talk Time:3.5hMusic Play Time:5-7h Charging Time: 1-2 hCharging Voltage: DC 5V Transmission Distance: 12-20m EarbudsCharging Case Battery Capacity: 300mAhFrequency Response:2.40GHZ-2.48GH