Quelima BS440 Stereo Bluetooth Headset, Folding Extendable Wireless Headphone - Blue

Quelima new headset Bluetooth headset Stereo Bluetooth headset Folding stretch Bluetooth headsetModel: BS-440,Material: ABS environmental protection material + soft spongeBluetooth version: v4.0,Frequency range: 2400.0-2483.5MHZDirectionality: multi-directionalBluetooth mode: headset, hands-free mode, A2DP and AVRCPBluetooth chip: JerryBluetooth distance: about 10 metersBluetooth search name: 440Talk time: about 3-4 hoursPlay music time: about 4-5 hoursStandby time: about 100 hoursCharging time: 2-3 hoursCharging interface: Micro USBBuilt-in 300 mAh batteryHorn diameter: 40MMResistance: 32 ohmsMicrophone size: 2*4MMSensitivity: -42DB, noise reduction, active noise reduction,Working voltage: 3.1-A4.2vDistortion: 0.2%105db (20upa)Channel difference: 1dbat1000hzFeatures:Support TF card maximum support 32GB format MP3, support to call, support voice prompts, power display support folding, support Bluetooth automatic connection, stretch according to head size, support 3.5mm audio connection, super stereo sound, headset use ABS environmental protection material + environmental protection sponge, comfortable atmosphere, shape design, elegant and stylish full wrap-around earphones, comfortable to wear, high noise, is the life of the noise reduction microphone, clear call, smooth effect. This product can be used, morning Running, outdoor, fitness work decompression.GeneralBrandQuelimaModelBS440MaterialABS+Soft spongeQuantity1 pieceConnectionsConnectionBluetoothBluetooth VersionBluetooth V4.0Bluetooth ChipJerryOperating Range10MConnects Two Phones SimultaneouslyNoSpecificationHeadphone StyleHeadband , BilateralWaterproof LevelIPX0 (Not Protected)Applicable ProductsUniversalHeadphone FeaturesHiFi , English Voice Prompts , Phone Control , Long Time Standby , Noise-Canceling , Volume Control , With Microphone , LightweightSupport Memory CardYesMemory Card SlotStandard TF CardMax. Memory Supported32GBAudio PropertiesSupport Apt-XYesSensitivity-42DBTHD0.2105db(20upa)Frequency Response2400.0-2483.5MHZImpedance32ohmPowerBattery TypeLi-ion batteryBuilt-in Battery Capacity 300mAhStandby Time100 hoursTalk Time3-4 hoursMusic Play Time4-5 hoursPower AdapterUSBPower Supply3.1A 4.2VPacking List1 x Bluetooth Headset1 x Charging Cable 1 x Chinese and English ManualPackage Weight:0.232kg (0.511lb)Package Size:17cm x 14cm x 8cm (6.69in x 5.51in x 3.15in)