Specifications Bluetooth speaker,Portable speaker 1.mini gift speaker 2.bluetooth speaker Play with MP3,MP4,mobile, phone,laptop,etc. Bluetooth speaker,Portable speaker1.mini gift speaker2.bluetooth speakerPlay with MP3,MP4,mobile, phone,laptop,etc. SpecificationRMS:2.6Ω,3Watts; Material:Aluminium Alloy Bluetooth V2.1+EDRDriver Unit):StereoFrequency Response: 100Hz---20KHz; Bluetooth Operation Range: Up to 10 Meters; Color:Metal Gray/Metal Blue/Metal pink/Metal Red;inner MIC; Battery:inner alu-Lithium/520mHADimension: 60*60mmSupport:AUX in,Cellphone,MP3,MP4,MID,PCSupport:FM radioSupport:3.0 Hands free Services Our guarantee is one year, if there’s any quality problem within 7 days after customer receive , we can absorb the shipping cost both for return and ship out again; if any problem after 7 days we can still repair for free and ship with next shipment Accessory 1*Use manual, &nbs
Brand Name: kawata Model Number: KT-91 Type: Active,Emergency / Portable Use: Mobile Phone,Mobile Phone, Outdoor Channels: 1 Special Feature: Wireless,Wireless, Portable Place of Origin: Guangdong China (Mainland) Color for choice: white, black, grey,and so on Feature: Arabic and English talking, two handsfree Fitting 1: Bluetooth connecting , wireless Fitting 2: Re-charging iPhone Fitting:: user manual, color gift box Product Name: High Quality Base Dock Charger for iPhone Packaging & Delivery Packaging Detail: Normal giftbox and bubble bag Qty/CTN:20PCS. CTN size: 45.9 x 37.0 x 46.6cm CTN GW: 16.6kg Qty/1x20'GP: 6660PCS Qty/1X40'GP: 13840PCS Qty/1X40'HQ: 17420PCS Measurement of carton: 0.078CBM Delivery Detail: 25-30 days after received order details and deposit Specifications -Solar bluetooth speaker -CE,REACH,ROHS, -Radiation -Charging accessory -Bluetooth handset Solar bluetooth speaker &nb
Specifications portable Bluetooth NFC speaker,wireless Product Overview: 1.With bluetooth NFC function,all of the process is wireless. 1.The Bluetooth highest sound effect can reach 107 dB, excellent performance, and the audio transmission distance more than 50 meters, music playback time is up to 6-8 hours,Innovative design, charge tips. 2.In a key answer: At the bottom of a key answer, built-in microphone, answer or play music never miss. 3.High data transmission,24Mbps, it’s the double of 2.0,and can connect two equipment at the same time, Support stereo. Can realize the automatic connection, without verification. 4. Beautiful sound without boundaries,larger 45mm drivers precise highs for superb sound clarity. How To Use: 1.The power swicth:click the power key in the bottom, the status light turn to blue,X1 is enter to the working state;and then click the power key,the status lights blue extinguished, X1 is turned off. 2.Bluetoot
Brand Name: OEM Model Number: i-sound Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer,Outdoor Channels: 2 (2.0) Special Feature: Portable,Mini Place of Origin: Guangdong China (Mainland) Bluetooth: 2.4G Audio:: Mp3 and WMA Battery:: 800mah BL-5C Colors:: Blue,Red,Pink,Green,Orange FM Radio:: 87-108MHz Material: Aluminum SD Card: Support Packaging & Delivery Packaging Detail: Carton sixe:47*35.5*36cm 20pcs/ctn,12KG Delivery Detail: 3days for samples,7days for 2000pcs Specifications bluetooth speaker 1.bluetooth speaker 2.FM Radio 3.phone talking 4. bluetooth speaker Specifications:Newest design,Hot in HK Electronic Fair in October,20111.Compatible for MP3 ,MP4, mobile,computer,iPod ,iPad, 2.iPhone,Flash,Usb Driver and SD card with Hifi sound2.Bluetooth3.Phone talking3.FM Radio: Yes, (87-108MHz)4.Playing Time:6 hours5.Battery: Nokia Battery BL-5C, Playing time 6 Hours6.Audio: Mp3,WMA7.Speaker: 2*3W ,one bass8.Case Material: Aluminum shell9.Slot: AV
Model Number: WS-S-057 Use: Portable Audio Player,Mobile Phone,Computer Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: gift box with Usb cables Delivery Detail: 7~10 Days Specifications HOT!!! 2013 Portable Wireless Mini Bluetooth Speaker NEW!!! 2013 Portable Wireless Mini Bluetooth Speaker Speaker Specification: 1.Accord with bluetooth V2.0 2. Transmission range:<10M 3. USB charging voltage :DC 5V 4. Output power:3W 5. Built-in Power : Li-ion Battery 5V/
Specifications Unique and Classic Audio Bluetooth Speaker-Driving car Speaker Basic Info. Model No.: YG20130422HS Moving Power Blue Tooth Speaker Audio Play Music Specifications:Unique and Classic Audio Bluetooth Speaker-Driving car SpeakerBasic Info.Model No.: YG20130422HSProduct Description:Mobile phone MP3/4,Single loudspeaker diaphragm,With memory function,With a hands-free call function,Can be directly on the speakers on the/first,Suitable for the iPhone, iPad, blackberry and notebook, and other bluetooth devices with spare batteries
Specifications 1)Play music while charging your phone wirelessly 2)With bluetooth and handsfree 3)With alarm clock 4)Time and temperature New 2013 Wooden Bluetooth Speaker with Wireless Charging for Mobile Phone Specifications: Item:Bluetooth Wireless Charging Speaker (SXi-S324)Bluetooth Ver.:2.1Bluetooth profiles :A2DP, AVRCP, HFP, HSPBluetooth distance: 10 mFrequency response:60Hz - 20KHzOutput power :RMS3W +3 WSpeaker :4Ω 3W 1.5inSignal-to-noise ratio :> 70dBDistortion :<1%Power Adaptor: AC100-240V 50/60Hz DC 19V 800mA Product size:221*140*68mm N.W:810gCable:3.5mm Jack audio cable Packing List Speaker*13.5mm Jack audio cable *1Power adaptor*1User manual*1 Highlight Features:1. Pure wood, texture surface,stylish appearance.2. Integrate clock, alarm,speaker and thermometer function in one.3. LED digital display, high sense touch key.4. 3.5 mm stereo line-in cable for playing other audio devices.5. Easily paired with Bl
Brand Name: GC Model Number: BS802 Type: Active Use: Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) produce name: Mini bluetooth speaker Transmission distance: 10m Support: Bluetooth V3.0 Batterycapacity: 800mAH line-in function: Support Weight: 64g Stereo output: for phone/laptop/MP3/4 Frequency Response: 20HZ-20K HZ Packaging & Delivery Packaging Detail: regular packing Delivery Detail: 3-5 working days Specifications bluetooth speaker 1.Bluetooth V3.0 2.High quality audio 3.Transmission distance:10M 4.Support line-in function 2012 newest wireless bluetooth speaker for iphone 4s Key Features: 1. Conform to Bluetooth V2.1 + EDR 2. Support hand free calls, and echo weakening 3. High quality audio A2DP V1.2 4.3W stereo output and high-level sound quality 5
Brand Name: OEM/ODM Model Number: YM-S10 Type: Passive Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer Channels: 1 Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Colour: red/green/white/blue/orange Packaging & Delivery Packaging Detail: the PVC + the gift box Delivery Detail: 5days Specifications portable wireless bluetooth speakers Factory Bluetooth mobile / Iphone speakers High Quality Lowest price CE,ROHS,FCC Super mini speaker features :1. Music player-allow you to enjoy music anytime,anywhere charm.2.This is a modern fashion, the appearance of a unique MINI digital audio.3.The new aluminum diaphragm micro-speaker, clear treble,bass,pure,unique design,the sound quality was even beeter4. New concept of integraed digital audio player, connect your mp3,mp4,CD,DVD,ipod,iphone,PSP,mobile phones,computers.5. Metal, circular design,button curved design,a variety of colors, highlights the modern style, make you own way.6.Li
Specifications bluetooth speaker RF range is up to 10M Ultra-simple style design easy to carry high quality New design wireless mini bluetooth speaker, 2013 hot sale mini bluetooth speaker for phone,ipad etc Specificatoin:
Specifications 1.For Jawbone Jambox Bluetooth speaker 2.with 500mAh li-ion battery 3.support TF card 4.support iphone ipod mp3 For Jawbone Jambox Bluetooth speaker with handsfree function Features:Support: mp3,mobilephone,ipod,iphone etc.Easy to carry, you can enjoy music in everywhere.This model is good choice for promotation gift,and also we can produce without bluetooth funtion. Specifications:Material:ABS and aluminium alloy Power Supply: Rechargeable Li-ion battery 3.7V 300mAhSpeaker Unit:3W*2Frequency Response:100Hz-20KHzSNR:≥85db Distortion:≤0.1 % bluetooth V3.0+EDR Transmission distance: 10M Color: various colors are available Thanks for your visiting and have a good day!
Specifications 1.Fashion design 2.Only the size of an egg 3.Good quality of sound 4.Can use at any time charging 5.Light and clever Bluetooth mini speaker Bluetooth hamburger Speaker-Creative hamburger design, bluetooth music receiver, bluetooth audio receiver , portable mini speaker .-Stereo bluetooth module, bluetooth speaker -10 meters remote control scope-Extendable bass tube for deeper and stronger sound-Build-in 3.5mm audio cable for directly plug into Ipod,MP3, computer etc-Build-in high capacity Polymer battery-Works with Ipod, Iphone, Mobile, Computer etc. Reference photo: Technical Parameters : Power supplier:DC5V Output power:3W(1KHz,THD10%)Frequency:200Hz——20KHzSignal&noise ratio≥80dBImpedance:4 OHM(Ω)Li-ion Output:5V Li-ion Input:3.7V~4.2V+0.05V Polymer battery:400mAhSpeaker Unit:40mmCase Material:ABSDimensions:Dia60mm*H45mm (closed resonation)Talkback function:MICWeight:90gColor:Black/Red/W
Brand Name: OEM Model Number: H-5100R Type: Active Use: Home Theatre,Portable Audio Player,Karaoke Player,Outdoor Channels: 6 (5.1) Place of Origin: Guangdong China (Mainland) Color: Customized Power Supply: 220V~240V 50Hz/60Hz Output: 30W+10W*5RMS) Input Sensitivity: 350mV S/N: On/Above 65dB Separation: On/Above 40dB Frequency Response: 40Hz-20KHz Subwoofer Drive: 5.25" Satallite Drive: 3" Packaging & Delivery Packaging Detail: Color Box:398*384*330 mm Carton Box:B=B 788*410*345mm 2sets/carton Delivery Detail: 30-45 days after receipt deposit Specifications 1.5.1 bluetooth speaker;5.1 speaker;bluetooth speaker 2.With USB SD card slot 3.With remote and FM radio 4.5.25"woofer Blue/Red 100W 5.1 Bluetooth Speaker (H-5100R) Features: 1.5.1 Home theatre system 2.Built-in FM radio 3.Optional Video output and Bluetooth functions 4.With input cable,can connct to MP3/DVD/Computer/VCD/EVD etc. 5.Built-in USB&SD card
Specifications 1.Fashion design mini bluetooth speakers 2.Great sound quality 3.Suitable for gift and store for sell newest mini bluetooth speakers Material:ABSPower Rating:2.5W*2 Frequency Response:100HZ-- 20KHZ
Specifications home theater speaker box bluetooth speaker JH-MD06BT for Iphone/Ipad/Ipod/mp3/mp4/dvd/laptop home theater speaker box bluetooth speaker JH-MD06BT for Iphone/Ipad/Ipod/mp3/mp4/dvd/laptop 1) bluetooth speaker 2) good quality 3)available for various devices
Specifications new design bluetooth speaker fashion mushroom shape TF card good sound effect NEW design bluetooth speaker SK-301 Speaker specification: NEW design bluetooth speaker SIG bluetooth v3.0+edr version Output Power: 5W Frequency Response: 90Hz-20KHz music play in MP3 format
Brand Name: jphx Model Number: sk-s10 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Home Theatre,Portable Audio Player,Mobile Phone Special Feature: Wireless,Portable,Mini,Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) color: blue support: TFcard Style: Wireless Mini Speaker with Rechargeable Battery product weight: 0.207KG working range: up to 10m the gross weight: 17.4KG/carton the net weight: 16.4KG/carton package: gift box Packaging & Delivery Packaging Detail: paper box Delivery Detail: 3-7days Specifications 1.Fast making Sample Time:only need 3 days 2.Various color available for your option 3,100% Product inspected by QC Speaker SpecificationSupport A2DP, AVRCP,Headset,Handsfree ProfileBluetooth Version: V2.1Working Range: Up to 10mWorking Time:5 HoursDimension:60*60*50mmNet Weight:230gSpearker:45mmLoudspeaker Output:3WFrequency Response:280HZ-16KHZSignal-to-Noise≥95dbDistortion:≤0.5% Battery Vol
Brand Name: Longlinke Model Number: bluetooth speaker Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer,Table PC/Laptop Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) specification: Volume increase/Next one overview: Bluetooth 3.0 wireless Material: PC+ABS Product size: 210*67*67mm (About 100g) Support: DC slot Colors: black+orange, black+blue, black+green or your customized Packing: Color gift box Output power: 2 * 3 W RMS Frequency Response: 150Hz~12KHz Styple: BT speaker, built in battery, hand free kit, Line in, FM, TF,USB Packaging & Delivery Packaging Detail: Color box Delivery Detail: 2-3 weeks Specifications bluetooth speaker *Bluetooth 3.0 wireless *Built in battery *Handsfree call *Easy to use in car,office etc 2013 Hottest portable rugby shape Mini Bluetooth Speaker for mobilephones with microphone&hands free functionThis Bluetooth speaker stand for
Specifications AWS277 2013 New Hot Sale Bluetooth Speaker! Mini Bluetooth Speaker Portable For Iphone/Ipad Bamboo touch Induction LED lamp Ce AWS277 2013 New Hot Sale Bluetooth Speaker! Mini Bluetooth Speaker Portable For Iphone/Ipad bluetooth speaker mini bluetooth speaker speaker bluetooth AWS277 Bamboo Touch Induction LED Desk Lamp Bluetooth SpeakerCan connect with ipod/iphoneThe latest industry EDR + 2.1 bluetooth technology, strong anti-interference ability Bluetooth stereo, excellent quality, bass shock10 meters wireless distance, penetration ability Suitable for intelligent mobile phone, notebook, etc to support bluetooth function of the equipmentThe latest high polymer battery, endurance for eight hours Miniature sound 3.5 stereo audio interface, can insert MP3, MP4, computer, mobile phone and external source Touch induction LED desk lampWith high capacity in the long life 5 v rechargeable battery, safety, energy saving, convenient; Product
Specifications loud voice portable product, easy to take wireless convenient long life battery
Brand Name: Treetop Model Number: BS200 Type: Active Use: Portable Audio Player Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) colors: red black, silver black, white blue Packaging & Delivery Packaging Detail: NW/GW: 6.4/7.2KGS/CTN, 20PCS/CTN, ITEM SIZE :22.5*13*4.5CM, CTN SIZE:50*28*24.5CM, 0.03CBM/CTN Delivery Detail: 20-25days after payment received Specifications Hot sell bluetooth speaker 1,Portable,mini size. 2,Rechargeable. 3,Volume controlled by bluetooth 4, Cool package, Hot sell bluetooth speaker , BS200 is a new product, which is very popular and estimated to be sold well in the furture market, specially for the bluetooth speaker area. Specifications: Rated power: 1.7w*2, THD <1%Frequency response: 100HZ-20KHZ S/N > 70DBSpeaker: 40mm, 1.7w/4 Ω *2Suppor profile: A2DPEffective Range: 10MRechargeable batteries: 500maDimension: 165L*70W*42H mmWeigth:185g
Brand Name: OEM Model Number: S-01 Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage,Outdoor Channels: 3 (2.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) color: red white black Packaging & Delivery Packaging Detail: gift box Delivery Detail: 2-7days Specifications Perfect Wireless bluetooth speaker with alarm for iphone &ipod 1, Power output power: 3 + 3 W, 2.0 stereo speakers. Perfect Wireless bluetooth speaker with alarm for iphone &ipod1, Power output power: 3 + 3 W, 2.0 stereo speakers.2, frequency response: 60-20 KHz3, speaker impedance: 3 ohms * 2 PCS.4, signal-to-noise ratio: FM 45 dB iPod/iPhone 80 dB AUX input 80 dB5,Power input: AC input 100-240 V / 50-60hz, DC output 5 V / 1.2 A transformer.6 Product size: (L) 208 mm * (W) 100 mm * (H) 83 mm weight: 600 g6, color box dimensions: (L) 240 * (W) 195 * 103 mm (H) weight: 1042 g
Specifications 1.Bluetooth mini Speaker 2.Can play music by BLUETOOTH to mobile phone 3.bluetooth function with twin channel 4.ce Bluetooth speaker EN-BLS020 Portable bluetooth speaker Specificationmetal sense design:Support Bluetooth audio inputportable, hanging portable designFrequency Response: 160Hz-20KHzBluetooth wireless audio transmissionTHD: ≤ 0.1% (3.7V/1KHz/1.8W)ariety of classic color for choiceOutput Power:2.0WWith phone handsfreeSpeaker: 4Ω 3WSensitivity: 450mVSeparation: ≥ 88 dBSignal to Noise Ratio: ≥ 90 dbCharge voltage: DC 5VOperating voltage:DC 3.7V Battery capacity: 400MAProduct size: 44*H47.5mm PackageColor box size:11*5.5*12cmCarton size:64.5*36*37cmQTY/CTN:100pcsN.W/G.W:32KG/33kg20'GP:29942pcs40'GP:64320pcsAccessories1)USB power supply cable
Specifications Bluetooth speaker/bluetooth car kit/Handsfree car kit Combining the two sets together: the car kit base and Bluetooth headset. Bluetooth speaker/bluetooth car kit/Handsfree car kitBluetooth specification:2.0, range:0-:10 m;Easy to installation and just clip to the sun visor;Independent FM wireless earpiece to protect your secrets;Up and Down button to check the number who call you;Super bright LCM caller english name display;Complete blue tooth wireless installation;DSP technology, Full duplex, noise and echo suppression;With 1600mAh Lithium battery to provide typical standby time of more than ;168 hours talking time of 11 hours and headset talking time of 5 hours;Voice dialing, last call redialing, and call switching function.;Built-in high intelligent microphone and powerful speaker.;USB faucet to software framework update and charge
Brand Name: BiJELA Model Number: BJ2009-HT Type: Active Use: Portable Audio Player,Mobile Phone,Computer,Outdoor Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Color: Red / Silver / Blue Specifications Bluetooth Technology, Protable Design, Built-in speakerphone function FeaturesUltra-compact, high performance Bluetooth speaker and speakerphone in the palm of your handSpeakerphone, built-in microphone, and automatic shift to phone callWorking range is up to 8mRechargeable battery built-in, giving up to 6 hours of constant playbackAux in works with all players with a standard earphone slotSpecificationsOutput power: 1x 2WS/N Ratio: ≤80dBmBuilt-in Li battery: 420mAhPowered by:USB cableBluetooth profiles: A2DP V1.2, AVRCP V1.4Frequency response: 2.4GHz-2.480GHzEffective range: 8m
Specifications Wireless Bluetooth Speaker. Top grade, upscale; Modern design; Fantastic modeling; Good premium gifts! Wireless Bluetooth Speaker of IBomb EX800 is coming and official listing! YOUR EYES WON'T BELIEVE YOUR EARS HUGE SOUNDWith EX800 you can play music, movies and games and fill even the largest spaces with sound. Precision-tuned drivers and dual passive bass radiators work in concert to produce amazingly clear, full audio at any volume. COMPLETELY WIRELESSStream all your digital media from any Bluetooth device and control IBOMB EX800 from across the room, or use the buttons on top to pause, play and skip. With a built-in rechargeable battery that lasts up to 6 hours, you can party all day or night, anywhere. PORTABLE DESIGNWith its stainless steel construction and compact size, full metal feeling, IBOMB EX800 is the perfect companion for any mobile device. Take it with you from room to room or share your sound anywhere, like the beach, park, hotel, backya
Specifications 1. OEM/ODM 2. High quality definition 3. USB AUX output 4. Li-ion battery 5.Konda factory mini bluetooth speaker for gift Konda factory mini bluetooth speaker for gift promotion Features and specifications:
Brand Name: Ansonwell Model Number: ASW-SBL001 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer,Stage,Outdoor,Travel Channels: no Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Material: ABS Plastic Color: white,gray,black Product Size: 140*65*30 Weight: 0.171kg Packaging & Delivery Packaging Detail: Color box & OEM packing Delivery Detail: 2-5 days Specifications bluetooth speaker 1.for mobile phone,MP3,computer.. 2.Support TF card 3.Bluetooth Remote Control 4. LED screen bluetooth speakers Features:1.Touch-sensitive buttonsPlay stereo music from any A2DP sourceAux line in for portable music players,2.dual track3.Built-in stereo Bluetooth transfer technology4.Detachable and rechargeable battery,up to 8 hour music playing time5.Functions: - Switch on / off, Pairing Transfer stereo music from any A2DP source or other portable music players,volume adjustment6.power:2.5W*2Material: ABS Plastic
Brand Name: KLT Model Number: KLT Buletooth speaker-J6 Type: Active Use: Home Theatre,Portable Audio Player,Mobile Phone,Computer Channels: 2 (2.0) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) P Freq Range: 200Hz-16KHz Sensitivity S\N: 80db±2db Distortion: â¤0.5% Charge Voltage: 5V+0.5V bluetooth: 2.4GHZ Power Output: 3W charging time: 2-3 hours playback time: 4-6 hours Dimension: 60MM*49MM shell material: ABS Packaging & Delivery Packaging Detail: gift box or OEM box Delivery Detail: 10~20 working days after payment Specifications 1.with interphone function 2.bluetooth high-tech 3.acceptor resonance with low distortion 4.high quality 5.competitive price Hot sale patent product!! bluetooth speaker technology parameters Frequency response200HZ-16KHZSensitivity S\N80db±2dbDistortion≤0.5%Speaker size40mmSpeaker impedance8 ohmBattery capacity550mAHInputL/R 320mVoutput power3wBluetooth2.4GHZCharge Voltage5V+
Brand Name: XIHAMA Model Number: mz-520 Use: Portable Audio Player,Mobile Phone,Computer Channels: 5 (4.1) Special Feature: Wireless,Portable,Mini Place of Origin: Guangdong China (Mainland) Weight: 0.12kg Packaging & Delivery Packaging Detail: Retail package Delivery Detail: 3days Specifications Wireless bluetooth speaker MP3 Player MZ-520 Portable Mini speaker for phone/ Support TF card prompt goods fast ship low price MZ-520 is fashion in appearance, pure in acoustic, small and portable. It is convenient to use at home, outdoor tourism and business travel, you enjoy music anywhere at any time. It is fit for your mobile phones. Well. Choosing the dreamer, enjoying music!Product features: 1. Wireless conjunction, Bluetooth wireless playing function 2. Support variety cellular phone Bluetooth built-in 3. Other menus of phone is available to work on when using sound box 4. Support TF card 5. Support wired media devices with 3.5 mm plug