Feature:1. Easy to carry, extremely portable, lightweight wireless audio transmitter and receiver, perfect wireless audio solution for all kinds of situations and usages.2. Transmitter mode: Wirelessly transfer audio from non‑Bluetooth TV, home stereo system or for CD player to Bluetooth headset or loudspeaker.3. Receiver mode: Wirelessly transfer audio from Bluetooth‑enabled mobile phones, tablets or computers to wired stereo, loudspeakers or headphones.4. Switching freely, just plug 3.5mm audio cable into different ports, switch between transmitter and receiver modes. Easily connect using advanced Bluetooth technology and 3.5mm audio cable(included).5. Ultra portable audio streaming power supply, this transmitter and receiver in your backpack or laptop bag and take it with you without any effort.6. Non‑hot technology, can continue use for 8 hours, built‑in 200mAh large capacity rechargeable Li‑ion battery, supports charging while charging, just takes 2 hours to full charge. It is suitable for hot charging while charging. The designed of Micro USB charging port supports continuous playback when plugged in. The built‑in power supply isolation form board does not generate heat when used.7. Listen to songs unlimitedly, enjoy Hi‑Fi fun, support multiple audio decoding technology, present Hi‑Fi level sound quality, let you hear more music details.8. Wide range of use, suitable for all kinds of car, trucks (with AUX audio interface), TV, computers, TV boxes, Bluetooth audio, Bluetooth headsets, most audio, power amplifiers, mobile phones and tablets PC, etc.Specification:Condition: 100% Brand NewItem Type: BT-13 2-n-1 Bluetooth Receiver TransmitterMaterial: ABSColor: BlackOutput Interface: 3.5mm AudioBluetooth Protocol: AVRCP，A2DPBluetooth Version: 5SNR: > 90dbBattery Type: Polymer Lithium BatteryBattery Capacity: 3.7V/300mAhMultipoint Connection: Support 2 In 1Forward Transmission Distance: 10MFrequency Range: 2.402GHz-2.480GHzTransmission Rate: 200（Mbps）Weight: Approx. 89g.Package List:1 x BT-13 2-n-1 Bluetooth Receiver Transmitter1 x 3.5mm Audio Cable1 x Micro USB Charging Cable1 x Manual