Product Name: Ipx5 Waterproof Sport Bone Conduction Bluetooth Headphones, Open Ear Lightweight Stereo Hands-Free Model NO.: LY-E768 Distance version: Class A Color: Black Function: Bluetooth, USB Soundtrack: Dual Track Usage: Mobile Phone, Call Center, MP3 & MP4, Computer, Game Player Style: Neckband Feature: Flexible/Elastic Technology: Bone Conduction Sweatproof: Yes Ipx5 Open Ear Design: Yes Trademark: OEM/ODM Transport Package: Giftbox: 16.5*13.5*6.5cm Specification: Titanium wire &Plastic & Silicon & TPU & steel Origin: Shenzhen Product Description This Smart Bone Conduction Headset is abluetooth V5.0 version offering fast and very stable connectivity. The new technology allows this headset to transmit sound waves from the upper cheek bone to the ears, rather than conventional "old style" in ear phones.Designed for outdoor enthusiasts and sports people, they aresweatproof, moisture & drip resistant.Great innovation and smart technology to deliver the most incredible sound to enjoy all types of music.Specifications:Product Dimensions:139*107*35 MMWeight: 26gMaterial:Titanium wire &Plastic & Silicon & TPU & steelSpeaker type: Bone conduction transducers (8&1W)Bluetooth Version: V5.0Voice Assist:simply press the voice assist button to converse with Siri or Google Assistant!Smart Sensor: Put on headphones and play music automatically, remove headphones and stop music playing(TBD )Telegram phone number (the headphone will voice broadcast the caller ID)Multipoint connection: 1 Bluetooth headset can connect 2 devices simultaneously, you will never miss any calls from your devicesSystem language:English‐prompt tone is English(can be customization)Operation: 4 Keysvolume up/ down & Last/Next Song, multi-function,Play/Paue keywaterproofing standard:IPX5Battery: 135mAh rechargeable Polymer batteryContinuous Play time:4hoursStandby Time: 200 HoursEffective range: >10m (33 feets)Mono/Stereo: StereoReceiving Sensitivity: 88dBmFrequency range:20Hz-20KHzMic: Anti-interference microphones, -42DBFully Charging: MicroUSB port and need1.2hColor: Gray,Red,Blue (Can becustomized color )Whats in the box1 X Bone conduction headphone1 X USB Charging Cable1 X Multi-language User Manual2 X De-noising silica gel earplug1 XStorage bag(optional)Company PicturesCertificates