Main Features:1) Mic type: Φ6 x 5mm2) Impedance: maximum 2.2KΩ3) Sensitivity: -58±2dB (0dB=1V/pa)4) Directivity: omni directional5) S/N ratio: >60dB6) Sensitivity reduction: within -3

Main features:1) 7" color LCD screen2) Support format: JPEG. MP3. Mp1. Mp2. MP4(avi3.0/4.0/5.0, wmv, DVD)3) Support memory card: SD, MMC, MS card.4) Support USB host5) TFT/LCD modules with high r

Features:1) Type: Simple type earphone2) Speaker: Φ15mm3) Sensitivity:102Db S. P. L at 1khz4) Speak frequency response:20Hz-20,000Hz5) Impedance:32Ω6) Rated power:100mw7) Power capability:10

Features:1) Type: simple type earphone2) Speaker: Φ15mm3) Sensitivity: 102Db S.P.L at 1khz4) Speak frequency response: 20Hz-20,000Hz5) Impedance: 32Ω6) Rated power: 100mw7) Power capability:

Main Features:1) Type: simple type earphone2) Speaker: Φ15mm3) Sensitivity: 102Db S.P.L at 1khz4) Speak frequency response: 20Hz-20,000Hz5) Impedance: 32Ω6) Rated power: 100mw7) Power capabi

Features:1) Type: Simple type earphone2) Speaker: Φ15mm3) Sensitivity:102Db S. P. L at 1khz4) Speak frequency response:20Hz-20,000Hz5) Impedance:32Ω6) Rated power:100mw7) Power capability:10

Main Features:1) Mic Type: Φ9mm x 7mm2) Impedance:maximum2.2KΩ3) Sensitivity: -58db ± 2db(0db=1v/pa)4) S/N Ratio:More than 60db5) Sensitivity Reduction:Within-3db at 1.5v6) Mic Freque

Specifications:1) All in one card reader2) USB 2.03) Only Windows95,98 need driver.4) Suitable for "MS, MS Pro, MS-Magic-gate, MS Duo, MS Pro DUO, RS MMC, Mini SD, MD, CF, CFII, SM, XD, MMC, MMC

Features:1) Mic type: Φ9mm x 7mm2) Impedance: Maximum2.2kΩ3) Sensitivity: -58dB ± 2dB(0dB=1V/pa)4) Directivity: Omnidirectional5) S/N ratio: More than 60dB6) Sensitivity reduction: With