For Sony S500, W960, K818c / Superior sound quality with bass punch / Wirelessly connect to your compatible music mobile phone / 3.5mm input jack # Featuring a simple solution to an entangled problem. The Stereo Bluetooth Headset is the perfect wireless solution for enjoying your Music while youre out and about. Providing superior Sound quality with Bass punch, this sleek music player also doubles as a wireless headset. Wirelessly connect to your compatible music Mobile phone and listen to your phone-based music wherever you are. Plus, there is no risk of missing a call, when the phone rings, the music mutes and you can take the call. Once you hang up, the music continues. The pendant also allows you to easily adjust the volume and field incoming calls. Connects wirelessly to your compatible mobile phone # Volume is easily changed on the pendant # High-quality Headphones fit snugly in your ears, blocking out a great deal of background noise # Play/call time of up to 8 hours and a standby time of up to 300 hours # Attach the discreet pendant to your shirt and handle both music player and phone calls on compatible phones through the easily accessible keys # Music automatically mutes when a call comes in and you can take the call with a simple press of a key on the pendant, when you end the call, the music continues # 3.5mm connector gives you the choice to Switch between different headphones to fit the occasion # Stereo Bluetooth Capability: A2DP and AVRCP # Bluetooth Technology: up to 32.80 ft. from your phone, Bluetooth 2.0 technology # Compatible Items: Sony S500, Z555 Designer Phone, W960, Z610, K550 Cyber-shot Phone, K550IM, K818c, G900 # In the box: # Sony Ericsson Standard Charger # In-ear style headphones # User guide # Unit Dimensions: 0.50" x 2.57" (pendant size); Weight: 0.46 oz.