Specifications 1,Bluetooth headset,bluetooth handsfree 8015 2,In stock with competitive price 3,with safe packing,tested before shipping Features:Bluetooth headset,bluetooth handsfree model:8015Bluetooth v2.1+ EDR compatibilitySmall and compact in-the-ear design,supreme comfort and perfect fitIt can wear with removable ear hook for either earA giant leap in voice quality with 'Aurstream'Supports bluetooth headset and handsfree profilesSpeaker volume gian controlSpecifications:Supporting edition:2.1Frequency range:2.4GHz-2.48zTransmission power:Class2Trasmisssion distance:10MEnvironment Temperature:Working:-20oC-60oC Charging:0oC-45oC Operating
Specifications Multifunction Hi-Fi Bluetooth Headphones When work with PC Audio cable,it could only listen to sound from PC,Support MP3 playe 2012 Hot!!! Multifunction Hi-Fi Bluetooth Headphones,Bluetooth Headphones with Mp3 1.Chipset:CSR BC5 V2.1 2.Support:A2DP,AVRCP,Headset,Headfree,Noise-Canceling,Voice-Dial/Mute
Brand Name: Winnershine or OEM Model Number: UVH-001 Style: Headband,Overhead wear and wireless Communication: Wireless Connectors: 3.5mm Use: Bluetooth headphone Function: Bluetooth,Noise Cancelling,Headphone & ear warmer Place of Origin: Guangdong China (Mainland) Mane: bluetooth headphone Color: Black/red/whgrey/pantone code Accessories: Charging line Material: POM & Acrylic & Terylene Pacakge: Paper gift box hook & OPP bag Sample: Avaialble OEM order: Welcome MOQ: 500pcs Packaging & Delivery Packaging Detail: Gift box Delivery Detail: 15-20 days Specifications 1.bluetooth headphone 2.Listen to music wireless 3.Durable battery 4.Fashion and versatile design 5.Lastest bluetooth desig UVH001 knitting wireless,bluetooth headphone Bluetooth Earwarmer Headphone Features: After Bluetooth earmuff is paired to a mobile phone, it is possible to make and receive phone calls thanks to the microphone and the speaker placed respectively on the Bluetoot
Specifications Mini Bluetooth Headphone SX-905 1) High Quality 2) Nice Design 3) Fast Shipment 4) OEM Mini Bluetooth Headphone SX-905 Unit Dimensions: 14.5/12.5/2.5cm weight: 130g Bluetooth Version: V1.2/V2.0 Charge Time: about 3hours Talk Time: 12hours Transmission Distance: Up yo 10M Package: 1xSX-905,1xcharger,1xUser manual
Brand Name: TianXing Model Number: bth-086 Style: Headband Communication: Wireless Use: game player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Products Status: Available Bluetooth versions: V2.1 Compatibility with V2.0 and V1.2 Transmission distance: 10M(class 2) Frequency: 2.4 GHz Weigth: 0.42KG Standby time: 220 hours Talk time: 13 hours Charge hours: 3 hours Power supply: DC 5.0V / 120Ma Working voltage: 3.3--4.2V Packaging & Delivery Packaging Detail: blister card Delivery Detail: 2-3 Days Specifications 1.Bluetooth Wireless Headphone For PS3 2.For PS3 bluetooth headset 3.Bluetooth versions V2.1 4.High Quality 5.OEM Bluetooth Wireless Headphone For PS3 Features:1). Multi-point supported: 2 connections simultaneously2). Support bluetooth headset,handfree profile3) .Redial the last call ,Reject call.4). Volume adjustable.5). LED indicates connection.6). Faster connecting, clear sound, anti-interference7). Over-the-head Design8). Noise cancelin
Brand Name: Gucee/OEM Model Number: H1 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling,Microphone Place of Origin: Hunan China (Mainland) Working voltage: 2.4-5V Working current: 55mA Frequency Range: 20Hz-20KHz Lithium Capacity: 150mAh Signal to noise: 95dB Color: Black or White Music Playback Time: 5 hours Talk Time: 6~8 hours Standby Time: 20 days RF Range: 10 M Packaging & Delivery Packaging Detail: Neutral Packing/ OEM Packing Delivery Detail: 15~25 days Specifications 2013 Hot product patent mould wireless bluetooth headphone 1. 2013 hot new products 2. Patent mould products 3 Direct factory 2013 Hot product patent mould wireless bluetooth headphone Features: 1. High quality Stereo music playback support 2. Support Bluetooth V2.1+EDR 3. Extra compact design 4. Special Multi-function button design for easy operation 5. Support Hands free and headset profile &nb
Brand Name: Gblue Model Number: G1 Style: Headband Communication: Wireless Connectors: 2.0 charging port Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: black, yellow, red, white Bluetooth profiles: HSP, HFP, A2DP,AVRCP Bluetooth specification: V2.1+EDR Chipset: ISSC Demensions(L*W*H): 60*60*50mm Speaker: 40mm*1 3W Weight: 230g Packaging & Delivery Packaging Detail: delicate gift packing: bluetooth headset, ear hook, charger, user manual. Pakcing details: pvc box packing. Delivery Detail: samples order: 3working day; mass order: 28 working day Specifications *Wireless Bluetooth Headphones *Elegant Fashion Design. *High Acoustic Fidelity. *Extremely Competitive Price *CE, ROHS, FCC Bluetooth Headphone Key specifications: Bluetooth specification: V2.1+EDRBluetooth profiles: HSP, HFP, A2DP,AVRCPOperating distance: 10 meters Class IIRechargeable 240 mAH Li-polymer batteryTalk time: Up to 35 hour
Brand Name: OEM Model Number: HB18-01 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Computer Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Speaker: 40mm color: as your request logo: welcome Packaging & Delivery Packaging Detail: 1.blister package 2.white box/color box 3.custom carton Delivery Detail: 20days after you confirmed the order Specifications hot sell bluetooth headphones,black bluetooth headphone,bluetooth headphone manufacturers&suppliers&exporters cool bluetooth headphones,black bluetooth headphone,bluetooth headphone manufacturers&suppliers&exporters Description:1,wireless headphone 2,FM radio 3,wireless monitoring 4,microphone for net chat5 in 1 wireless headphonewhich works freely with PC,MP3,TV,MD,DVD etc;High Sensitivity, interference resistance, strong signal, outstanding performance, effective range over 8m, and reception beyond obstacle of wall. Bass speaker for great enjoyment
Brand Name: M&J Model Number: V-2 Style: Ear Hook,mini Communication: Wireless Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Certification: no Packaging & Delivery Packaging Detail: blister+color card,color box Delivery Detail: 5-8 days Specifications Bluetooth Headset for V-2 1.Small and light bluetooth headset 2.Automatic connecting function 3.Works stereo Product Name: Bluetooth Headset for V-2 Details:*Bluetooth headset with digital recording*Records incoming and outgoing calls*Record voice memos*Extremely clear voice*Supported profiles : Headset, Hands-free*Recording audio indication*Memory full audio indication*Works stereo, excellent for listen music for your cell phone*Perfect for truckers, restaurants, and on-the-go business functions Following parts:1.Indicator light2.Receive/hang off button3.Charger jack4.Ear hook5.Microphone6.Receiver7.Wired earphone(for stereo series handset) Products show: Others :W
Specifications 1. fashionable design 2. multipoint connection 3. noise reduction and ECHO cancellation Wsound BH503 stereo bluetooth headset Using this stylish bluetooth stereo headset, you can control the music player, manage your calls, enjoy high-quality stereo sound from various bluetooth enabled devices. Features: Enjoy stereo music from coputer and mobileExtremely good quality,superior clear voiceMultimedia,stereo, foldable Headphone,NecKphoneHandsfree,compatible with all Bluetooth Devices Such As PS3 & IPHONEHigh Capacity&Rechargeable Lion BatteryAutomatic cennecting function Energy saving function,200% longer talk timHandsfree,answer/reject call and call the last coming NO.Voice Dialing,Re-dialing functionRemote control music playback,pause,up and down s
Brand Name: sunrise Model Number: BH-214 Style: In-Ear Communication: Wireless Connectors: 2.5mm Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: Blister, polybag, color box, gift box. Delivery Detail: 3-5 days Specifications Stereo Bluetooth headset for Nokia 1.high quality . 2.lowest price. 3.fast delivery. 4.have big stock. SpecificationsStereo Bluetooth headset for Nokia1.high quality. 2.lowest price. 3.fast delivery. 4.OEM service. Stereo Bluetooth headset for Nokia Clip Stereo Model,superior Clear Voice Support HSP/HFP/A2DP Bluetooth 2.1+EDR Feartures: CE,ROHS,FCC,UL and BQB approvalExtremely good quality,superior clear voiceElegant and Fashion design Bluetooth Headset Stereo,Bluetooth version 2.1+EDRSupports HSP and HFP profiles and A2DPRechargeable Battery:Li-ionLong talking time:range up 6 hoursExtremely Light:Only 9gColor:Black,Whte,Golden and Sil
Specifications 1.Correspond With V2.1+EDR 2.Frequency Range:2.4026GHz-2.480GHz 3.Easy to charge by USB-Micro USB cable Features and Functions: Touch control stereo bluetooth headsetStatic Current: Under 10UAWorking Current:Under 30mABluetooth Protocol:A2DP,AVRCP,HFP,HSPWorking Voltage:4.2VCharge Current:30mA---150mA(Red LED light up)Max Headset Output Power:L 20mw R 20mwBattery Capacity:30m AH 3.7vCharge Time:3 hoursWorking Time:Above 8 hoursBattery Life span:≥300 times rechargeableAvailable Distance:≥10M (Open and no block)Input Voltage:DC 5V/200mA (Can be connected to USB port)Standby Time:Above 30 hoursOutput Power:Class 2Support Bluetooth 2.1 version +EDR Technical Specifications 1.Correspond With V2.1+EDR 2.Headset Profile,Handsfree Profile and Advanced Audio Distribution Profile(A2DP) 3.Frequency Range:
Specifications New Fashion Bluetooth Headset 1.Comfortable design 2.Accept OEM 3.Small And Nice 4.Multiple functions New Fashion Bluetooth Headset 1.Comfortable design. 2.Accept OEM. 3.Small And Nice. 4.Multiple functions. 5.Bluetootch version:3.0. 6.Supported bluetootch profiles.headset, hands-free,advanced audio Distribution,Audio/video remote control. 7.Talk time: up to 15 hours. 8.Music time; up to hours. 9.Standby time: up to 15days. Item NameNew Fashion Bluetooth HeadsetStyleNeckbandBluetootch versionBluetootch versionCommunicationWirelessConnectors2.1+EDRFunctionBluetooth,Waterproof,MicrophoneMOQ15 days
Specifications Bluetooth headphones with OLED display/ FM radio Suitable for ipod/iphone/laptop etc small wireless headphones Fully CE ROHS 2013 fashion bluetooth headphones,OLED display earphones,TFcard stereo handsets with FM radio ------------------------Product Performance ------------------------- 1Folding portable plug-in card bluetooth headphones 2V3.0+EDR Blooth version,High data rate; 3Support 16GB TF card music play; 4Wearing type elegant appearance design, fashionable avant-courier; 5OLED display,the play state be clear at a glance; 6Intelligent lyrics displayed function,will be played on the display lyrics(LFC format for file); 7The Hi-Fi stereo,let you move feeling,three-dimensional transparence service of music;8Wearing the soft plastic material design,comfortable wearing;98 kinds of sound choice,meet different music needs 10Take FM radio function,support campus radio 11The built-in recording function,can record outside of the audio source 12The b
Model Number: C30 Style: In-Ear Communication: Wireless Connectors: Bluetooth Use: Bluetooth-enabled mobile phones, tat computers, notebook computers Function: Bluetooth,Microphone Place of Origin: Guangdong China (Mainland) Bluetooth Specification: V2.0 + EDR Bluetooth version: V2.0, compatible with V1.1, V1.2, V2.0 Support mode: Headset, Headfree Battery indicator: high-performance lithium polymer battery Bluetooth Power: Class 2 Bluetooth frequency: 2.4GHz Life time: about 4 hours Standby time: about 120 hours Support models: Bluetooth-enabled mobile phones, tat computers, notebook computers Specifications Multifunction Bluetooth headset support mobile phones, tablet PCs, laptops Bluetooth 2.0 protocol, simple secure pairing. Bluetooth Specification: V2.0Bluetooth version: V2.0, compatible with V1.1, V1.2, V2.0Support mode: Headset, HeadfreeBattery indicator: high-performance lithium polymer batteryBluetooth Power: Class 2 Bluetooth frequency: 2.4GHzLife time: about 4 hours S
Brand Name: SAWOLOL Model Number: HEP-001B Style: Neckband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: bubble bag and paper box Delivery Detail: 7-15 days after order confirmed Specifications 1. Bluetooth headphone 2. Back-neck design headphone 3. Take phones 4.Chargeable lithium battery 5. wireless Stereo Bluetooth Headphone Sports-style headphone,it's specially for your use when you are doing sports.- Back-neck, foldable design- Appliant to Version 2.0 - Transmitter Power: Class 2- Operation Distance: Within 10m- Frequency range: 2.4020-2.480GHz- Built-in rechargable Li-batteries:300mAh- Charger output Spec.: DC 5.0V(300mA)- Normal charging time: ≤3 hrs- Calling time: ≥10hrs- Music Time: ≥6hrs- Standby time: ≥135hrs- Unit dimension: 54x47x16 mm(Single Earplug) Packing:40pcs/CTN Carton Size: 52.5×24.5×41.5cmN.W.: 6
Brand Name: CBV Model Number: CBV-002 Style: Headband Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Function:: Noise cancelling,bluetooth Use:: Computer, Laptop Portable Media Player color:: black,pink Packaging & Delivery Packaging Detail: Rosh packing, polybag, plasticbox,the detail is up to customer Delivery Detail: In 25 Days Specifications 1.Stereo headphone 2.Great performance for music and gaming 3.Crystal clear&high quality voice 4.Noise cancellation no echo Professional manufactory of Earphones,Headphones, Headsets.1.New Style Earphone For MP3, MP4,CD,DVD and game players.2.Sound isloating&stereo earphone, fashional design3. Easy to carry when you travel around.4.Elegant apperance to show yourself. High-Resolution Pictures:
Brand Name: MINDSONIC Model Number: BT-108 Style: Headband Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth,Microphone Place of Origin: Zhejiang China (Mainland) color: different color for choice Packaging & Delivery Packaging Detail: color box Delivery Detail: 30 days Specifications support bluetooth Stereo Audio Multiple colors for choice • Comfort from adjustable head hand and earplug.• Embedded microphone for hands-free conversation .• Enjoy stereo music wirelessly from Bluetooth A2DP devices.• Pause the music,Play back automatically when receives an incoming call.• Button:Play/Pause, PREV,Next, Volume + ,volume -.• Call transfer between the headset and Bluetooth mobile phone.• Automatically connect to the last connected Bluetooth device.• Compatible with bluetooth enabled devices,such as most computers,cellphones,iPhone 4/4S/5,iPad,iPod,and other MP3/MP4 players• Bluetooth specification: V3.0+EDR• Po
Brand Name: guideray Model Number: JYT-002 Style: Headband Communication: Wired Connectors: USB Use: Mobile Phone Function: Bluetooth Place of Origin: China (Mainland) ORANGE: BLACK Specifications Stereo Bluetooth Headset for Game: 1.Realized Skype,MSN,QQ wireless network long distance call 2.Pair many Mobile Phone Stereo Bluetooth Headset for Game:1.Realized Skype,MSN,QQ wireless network long distance call 2.Pair many Mobile Phone ).Over-head desgin brings you comfortable,convience and fashion.2).Unique and intelligent function let you will not miss any mobile calls during you enjoy music3).This headset has strong compatibility, can pair for most of bluetooth phones in the market4).Wireless enjoy Hi-Fi stereo CD sound from computer which built-in Bluetooth drivers5).Can be realized Skype,MSN,QQ wireless network long distance call.6).The 3.5mm audio input interface is convinet for connecting with audio equipments.Built-in Li-ion battery Stereo Bluetooth Head
Brand Name: OEM Model Number: BSH557 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) color: black Packaging & Delivery Packaging Detail: - Box: standard or customization - User Manual x1 - USB Cable x 1 - Charger: car charger or Travel charger Delivery Detail: 3-7 working days Specifications 1)Hi-fi visual 3D stereo bluetooth headphone 2)novel design 3) clear communication 4) long communication distance Product name: Hi-Fi Bluetooth Stereo HeadsetModel NO.: BSH557 1.Product introductionBSH557 is a Hi-fi visual 3D stereo bluetooth headphone for all markets,novel design, clear communication, long communication distance, auto noice reduction, comfortable to ware and foldabl
Brand Name: Haoxin Model Number: 1220 Style: In-Ear Communication: Wireless Connectors: Micro Use: Mobile Phone Function: Bluetooth,Waterproof,Noise Cancelling,Microphone Place of Origin: Guangdong China (Mainland) Colour: Black bluetooth vertion: Bluetooth V3.0+EDR Support Agreement: Bluetooth Headset&Hands-free Profiles,A2DP,AVRCP Operating range: 10-15M Standby TIme: 150-200H Call Time: 6-9H Battery Type: Lithium Polymer Battery Sample Time: 1day Final order Time: 2-4days Warranty: 6months Packaging & Delivery Packaging Detail: Gift box or as your request Delivery Detail: 2-5days after confirm the payment Specifications wireless waterproof bluetooth headphones bluetooth vertion:Bluetooth V3.0+EDR Operating range:10-15M Standby TIme:150-200 Others more,plz click on our website!!! www.gzhaoxin.com.cn =========================== 2013Newest,convienient wire
Specifications 1 Winter Hat bluetooth earphone 2.Beanie headphone 3.Sport headset 4. Built-in memory 5 Accept sample order Unique Design Winter Hat Bluetooth Earphone /Beanie Bluetooth Headphone/ Hat MP3 Headset 1.Design/Dimension:50mm×50mm×11mm
Specifications New Universal Stereo Headset Wireless 1.MOQ: 100pcs 2. Be compatiable with any bluetooth enabled devices New Universal Stereo Headset Wireless Specifications of bluetooth: Bluetooth VersionV2.1 EDRTypeStereo headphone with internal micOperation Distance10mRange of Frequency2.4 to 2.4835GHz ISM bandSensitivity85dBPC InterfaceUSB2.0Music FormatMP3 at WMAStandby timeup to 200 hoursMusic Playing Time7 hoursNormal Charging TimeWithin 3 hoursBattery3.7V 300mA Rechargeable Li-PolymerPowerImput AC 100-240V, output DC 5V 300mARF Output Power-6dBm to 4dBmOperating temperature-10’C to +55’CSupportsBluetooth Headset, Handsfree, A2DP and AVRCP Profiles Features of bluetooth 1. Bluetooth Wireless Headphone with Micrphone2. Wireless chatting online(MSN, Skype, AIM, QQ...). Two-side real time wireless connection Motile, portable, Use for PC3. Build-in microphone4. Wireless operate the Music Player of PC
Brand Name: Pt Model Number: Pt-28 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Portable Media Player Function: Bluetooth,Waterproof,Noise Cancelling Place of Origin: Guangdong China (Mainland) color: black Packaging & Delivery Packaging Detail: customer reuqest or other Delivery Detail: 15- 20 days when confirm to the order after Specifications Multifunction Hi-Fi Bluetooth Headphones When work with PC Audio cable,it could only listen to sound from PC,Support MP3 playe 2012 Hot!!! Multifunction Hi-Fi Bluetooth Headphones,Bluetooth Headphones with Mp3 1.Chipset:CSR BC5 V2.1 2.Support:A2DP,AVRCP,Headset,Headfree,Noise-Canceling,Voice-Dial/Mute 3.Broadcast Range:10M 4.Talking Time:30 hours &
Brand Name: UTEL Model Number: E99(Stereo) Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Fujian China (Mainland) Color: Red/Silver Specifications Bluetooth Headphone with foldable ,portable and fashional design . 1; 2 in 1 function 2 ;Bluetooth Verion in 2.1 3 ; CSR
Specifications 1.over-ear bluetooth headset 2.adjustable headphone 3.wireless light headset 4.Wireless, sport-style 2012 Hotest Fashionable Wireless Stereo Audio Bluetooth Headphone,OEM/ODM welcome Description: 1: Bluetooth 2.1 wireless transmission protocol &nbs
Specifications 1.Frequency coverage: 2.402~2.480GHz ISM band 2.Sensitivity: -80dbm 3.Transmit range: up to 10m 4.Transmit speed: 57~723Kbp Fashion Sports Wireless Bluetooth Headset Earphone Headphone Earphone for Telehone PC Portable back-hang design, convenient for sportsSuitable for mobile phones, PC, and iPod Handsfree speaking by pairing with mobile phone Enjoy music of iPod with adaptive dongle Can receive and reject incoming calls while automatically stop music Volume adjustment Bluetooth version: 1.2/V2.1, wireless transmitter standard of class II Frequency coverage: 2.402~2.480GHz ISM band Sensitivity: -80dbmTransmit range: up to 10m Transmit speed: 57~723Kbps Stereo compression ratio: 44.1/48kHz Channel: 79 channels of 1MHz, B/W Contact terms: Point-to-PointBattery: Li-ion. Charge power : PC USB, 5V Charging time: 1-2 hours 40g/pcsPacking:blister
Specifications Bluetooth Bracelet Show caller ID on LED screen /Vibrate when call come /Prevent mobile lose /Apply to all bluetooth mobile. hot selling fashionable Bluetooth vibrating braceletBluetooth Bracelet Show caller ID on LED screen /Vibrate when call come /Prevent mobile lose /Apply to all bluetooth mobile Specifications:* Color: Black and White* Connectors/Ports: Charging port* Buttons/switches: A, B* Bluetooth Version: V2.1* Voltage: 3.6V-4.2V* Current: 130mA* Frequency: 2.4GHz* Input Voltage: 110~240V* Frequency: 50Hz* Input current: 0.15A* Output Voltage: 5.7V* Output current: 600mA* Charge time: 2 hours* Standby time: up to 72 hours* Battery: Lithium Polymer Product Notes:* The Bracelet has a 16cm internal circumference and the plastic is quite rigid.* You have to slide the bracelet down your hand so it’s mainly designed for petite ladies or adolescents.* Hold the B button to turn the device on and off.* Hold the B Button even longer to pair the device for
Specifications 1.Clic-on style stereo bluetooth earphone 2.Radio performation :class 2,version 2.0+EDR 3.Suppot A2DP and AVRCP Bluetooth headphone / bluetooth headset Feature :1.Clic-on style stereo bluetooth earphone 2.Radio performation :class 2,version 2.0+EDR3.Suppot A2DP and AVRCP 4.Coverage range :Aprox 10 meters (in open area)5.Four direction button for VOL+,VOL-,previous ,next ,play,pause 6.Superior noise suppression, echo elimination technologe 7.Compatible with any bluetooth enabled mobile phone 8.Talking time :8 hours /standbt time :100 hours /charge time :3 hours Accessories :Gift box ;User manual ;USB cable ;Earphone cable ;Power charger
Specifications Wireless bluetooth headset/mobile Enhancement Miniature,Wireless,Mobility Specifications:1.Bluetooth standard:V2.1 with EDR2.Transmission:Class 23.Working range:10M4.Frequency range:2.4GHz Spectrum5.Speaker output:<90db6.Talking time:4 Hours7.Standby time:100 Hours8.Supporting profiles:Dual headset and handsfreeMay vary due to the user a habit,different models of operation,and mobile phone settings.