Features: 1. Simple installation: built-in powerful magnet, it can be easily removed or fixed. 2. Noise reduction: Built-in CSR chipset, advanced noise suppression and echo cancellation functions. 3. With voice prompt: voice operation instructions. It can tell you to pair your phone, and it will also tell you when you turn on/off the hands-free phone or cell phone. 4. Good performance: Built-in high-power speakers and microphones make it the best assistant for mobile phones. 5. Automatic connection: After pairing, the phone and hands-free phone will automatically connect. Description: This product is durable and easy to use, with built-in high-power speakers and microphones, making it the best assistant for mobile phones. Specifications: Size:130mmx49mmx15mm RechargeablebatteryorDC5.0V,400mACarCharger Operatingfrequency:2.4GHz-2.48GHzSIM Protocolssupported:HSPandHFP Multi-devicepairing:Pairingrecordswith8 mobilephone Standbytime:1000hours/41days Talktime:15-20hours Chargingtime:about3hours Chargingvoltage:DC5.0V,1000mA RechargeableBattery:650mAh PackageInclude: 1xMultipointSpeaker Notes: 1.Duetothedifferencebetweendifferentmonitors,thepicturemaynotreflecttheactualcoloroftheitem.Weguaranteethestyleisthesameasshowninthepictures. 2.Duetothemanualmeasurementanddifferentmeasurementmethods,pleaseallow1-32cmdeviation.Thanks!