Adapter converts the phone's own audio output into universal 3.5 mm output 3.5 mm output means unlimited possibilities of device to broadcast the audio sound/music from your phone Adapter allows connection to any 3.5 mm stereo headset Adapter also allows your phone/PDA to connect to any home stereo system [Note: May require additional RCA Y-Cable] Suggestion: Audio adapter with 2.5 mm output or 3.5 mm output with built-in microphone OEM Part #: SYN1504 / SYN1504A Cable Length: ~4" / ~10.16 cm Output: 3.5 mm Stereo Socket Color: Black Accessory ONLY. Cell phone not included Compatible with: Motorola RAZR V3 / V3c [GSM & CDMA] / V3m / V3e / V3i / V3r / V3t / V3a / KRZR K1 / KRZR K1m / L2 / L6 / SLVR L7 / L7c / L7e / L7i / L71 / V8 / PEBL U6 / V6 / v3xx, Q