Product Name: Twins Wireless Sport Earbuds I7s Bluetooth Headset I7s I9s Model NO.: SG i9S 08 Distance version: Class B Specifications: HSP Color: White Characteristics: Power Display Function: Bluetooth Soundtrack: Dual Track Bluetooth Version: 4.2 Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player, Aviation Style: In-ear Music Time: 2~3 Hours Working Distance: 10m-15m Talking Time: 2~3 Hours Chargint Port: Lightning Adapter Cable Transport Package: Gift Box Specification: A2DP Origin: Shenzhen China HS Code: 8518301000 Product Description Twins Wireless Sport Earbuds I7s Bluetooths Headset I7s i9sModelNumberI9STWSWirelessHeadsetWirelessTypewirelessSensitivity120±5dBFrequencyResponseRange2.4GHZCompatiblewithallwirelessenableddevicesCertificationCE/Rohs/FCCpackagesize9.5*3.5*13cmColorBlack,Gold,Pink,Red,whiteBrandNameOEMPackageInclude1*wirelessEarphone1*USBcable1*UserManualFeatures:1. Listen to the song correctly, support the song and then call.2. Caller ID, last callback, all intelligent Chinese and English voice prompts, power on, pairing, power off when the phone is turned off;3. iPhone power display, you can watch the power of the headset at any time, do not worry about the headset without electricity, so that your life is worry-free;4. One or two connections, you can connect two mobile phones;5. The Bluetooth headset is connected to the mobile phone after each shutdown, and then the Bluetooth headset is automatically connected back to the mobile phone, which is also convenient