BTR017N Bluetooth audio receiver Special features Working time: About 12 hours With NFC technology Key specifications Bluetooth specification: V4.0+EDR Bluetooth profiles: A2DP & AVRCP Operating distance: 10 meters Class II Bluetooth frequency range: 2.402GHz-2.480GHz Rechargeable 230 mAH Li-polymer battery Charging input: DC 5V/500mA Features with cable management Charging via Micro USB connector Package BTR017I Bluetooth audio receiver Key specifications Bluetooth specification: V3.0 Working time: about 12 hours Support VOICE PROMPT