Specification

    * Mfr Part Number: BT450RX CHARCOAL
    * Features:
          o Bluetooth v1.2 compliant
          o Stereo Audio
          o Ear-Clip Headphone Type
          o Mobile Hansfree Communication
          o Stereo Wireless Transmission
          o Internet On-line Messenger Supported
          o Music Playing Remote Control
          o Connection Switching Playback Phone
          o Upto 6 hours runtime
          o Well-fitting Ergonomic Design
          o Multi-function Roller
          o Build-in Microphone
    * Sound:
          o Frequency Response: 20Hz ~ 20KHz
          o Sample Rate: 48 KHz, 16 Bit
          o SPL (Sound Pressure Level): 105 dB @ 1 KHz
          o THD (Total Harmonic Distortion): 0.5 %
          o SNR (Signal to Noise Ratio): 85 dB
    * Bluetooth:
          o Specification: Bluetooth v1.2 compliant
          o Bluetooth Profile Supported: A2DP (Advanced Audio Distribution Profile); AVRCP (Audio Video Remote Control Profile); HSP (Headset Profile); HFP (Hands-free Profile)
          o Fixed PIN Code: 0000 (a sequence of four zeros)
          o Connection Switching: Between 1 Player and 1 Phone
          o Audio Codec: SBC
    * Radio:
          o Carrier Frequency: 2.4 ~ 2.483 GHz
          o Spread Spectrum: FHSS (Frequency Hopping Spread Spectrum)
          o Modulation Method: GFSK (Gaussian Frequency Shift Keying)
          o Radio Coverage: Class 2, Upto 3 ~ 10 m (9 ~ 30 ft.)
          o Sensitivity: < 0.1% BER @ -80 dBm
          o RF Output Power: -6 dBm to 4 dBm
    * Power:
          o Power Consumption: 222 mW
          o Power Input: 5 V / 300 mA / 2.5 W
          o Built-in Battery: 3.7 V / 300 mAh / Lithium / Rechargeable
          o Battery life: Approx. 6 hours
    * Color: Charcoal
    * Dimensions: 1.73 x 1.46 x 0.79 inch / 44 x 37 x 20 mm (Single Side / Ear Clip Excluded)
    * Weight: 1.55 oz / 44 g (Battery Included)