Foldable Bluetooth earphone, back-head style

Fashion folable bluetooth earphoneBack-head style, 25 hours play timeModel No.: BSH10Feature* Stereo Bluetooth headset with back-hang style * Supports Bluetooth A2DP, AVRCP, and HS/HF profiles * Features Software & CVC echo/noise cancellation for reducing noise * Foldable design provides maximum portability * Wirelessly enjoy stereo music from all A2DP-enabled devices, such mobile phones, PDA, PC etc * Switch automatically from remote controls on the headset allow you to play, skip and selectyour music tracks. * Up to 20 hours of music playback timeSpecificationBluetooth Specification v2.1+EDR class 2 * The latest version of A2DP1.2 and AVRCP1.0 profiles support * Supports Bluetooth Headset and Hands-free Profile(HFP 1.5) * RF Frequency Range: 2.402-2.480GHZ, 2.4G ISM band * Radio Performance: Receive Sensitivity of -90dBm, TX Power Max 4dBm * Frequency Response: 20 Hz - 20 KHz, Very high Signal to Noise Ratio (SNR):95 Db, Total Harmonic Distortion (THD):0.1%, * 5 Button design: MFB, VOL+, VOL-, FWD, REV, * LED Indicator Status: Blue, Red * Rechargeable 400mAh Li-Polymer Battery * Mini 5 Pin USB Plug charging Port * Charger adapter Output: DC 5V&200mA * Nominal charging time: Max 4 hours * Talk time: Up to 20 hours * Standby time: Up to 400 hours * Dimensions (main body): 54(diameter) x 23(H)mm * Weight: 71.2 grams * Operating Temperature: -10 oC - 50oC * Storage Temperature: -20 oC - 80oCWhat's in Box* Bluetooth Stereo Headset * User Manual * USB cable chargerPacking *40pcs/ctn* Carton size: 46*41*23.6cm* Weight: 8.2KG