☆Please confirm the profile☆ Condition: New SONY Wireless Audio Receiver DRC-BTN40 Compliant with Bluetooth standard Ver. 3.0. By connecting separately sold headphones, you can pair with "Walkman", iPhone, Xperia smartphones, mobile phones, etc. that support Bluetooth, and wirelessly play music or make hands-free calls. Weight: Approximately 20g (including rechargeable battery) Charging time: Approximately 2.5 hours Battery life: Approximately 8 hours Supported codecs: SBC, AAC