Features: 100% brand new and high quality! Bluetooth V4.0 with EDR for superior wireless performance Support A2DP V1.2 CLASS 1!#!amp!*!2 Transmits up to 33 feet (10 meters)away Two-links: can connect two Bluetooth device at the same time NFC function is optional Built-in 150mA Li-Battery Specifications: Model: HB-BT01 Bluetooth: 4.0 Powered by: 5V DC Working Time: 5hours Charging Time: 1.5hours Size: approx. 48.5mm*34.5mm*11mm Color: Black Net Weight: 68g Package includes: 1 x Bluetooth Music Receiver 1 x 3.5mm Audio Cable 1 x 3.5mm Audio Adapter