Bluetooth-compatible audio transmitter and receiver,optical/AUX connection interface,dual optical interface + 3.5mm audio interface + RCA red and white conversion interface,easy to realize the use of different power amplifier audio equipment. ・Solve the problem of TV without Bluetooth,play games/watch movies and no longer disturb family members (PS: use in launch mode) ・Connected to 3.5mm audio access port,the speaker without Bluetooth-compatible function can also be played wirelessly (PS: used in receiving mode) ・Built-in 300mAh large-capacity rechargeable lithium battery,supports charging while using (PS: with 1 meter micro USB charging cable) ・Using high-performance Bluetooth-compatible chip,equipped with the new version of Bluetooth-compatible 5.0,the transmission is more stable,the signal is stronger ・Transmission mode: connect two Bluetooth-compatible headsets or speakers at the same time,share the same music,watch the same movie ・Small and exquisite,easy to carry ・Two-stage design,the combination of matte and mirror,more fashionable and beautiful ・With power indicator,know the working status at any time Parameters: ・Model: ZF-380 ・Output interface: 3.5mm audio + optical fiber ・Bluetooth-compatible version: 5.0 ・Bluetooth-compatible protocol: AVRCP,A2DP ・Battery capacity: 3.7V/300mAh ・Multi-point connection: support one for two ・Forward transmission distance: 10 meters ・Frequency response range: 2.402GHz-2.480GHz Package included: ・1 x Bluetooth-compatible Adapter ・1 x Charging Cable ・1 x English and Chinese User Manual ・Other items not included