Avantree Oasis Long Range Bluetooth Transmitter Receiver for TV & PC Audio, Home Stereo Speakers, Certified aptX Low Latency, Dual Link, with Voice Guide, Digital Optical Toslink 3.5mm AUX RCA [EXTENDED LONG RANGE]: Experience the wireless freedom to walk anywhere in the house! Proven range of 295ft in testing with headphones (Audition Pro), and 328ft using two Oasis units as a Transmitter / Receiver pair in open air line-of-sight conditions. Note that operating range can be affected by multiple factors (see details below FAQ1) [NO LIP-SYNC DELAY]: Supports the aptX Low Latency codec to virtually eliminate audio-visual lag making the Oasis an ideal choice for watching TV / movies. For best results, use with aptX Low Latency supporting headphones / speakers, like the Avantree Audition Pro and Torpedo Plus. [EASY TO USE]: The Oasis supports full-featured voice guidance and status / codec indicators, making it incredibly easy to set up and use. Supports digital OPTICAL / AUX / RCA audio output standards making it compatible with 99% of the TVs on the market. Connect the Oasis in between your TV and soundbar - then use the convenient Bypass switch to choose between your soundbar (Bypass mode) and streamed audio (Bluetooth mode) without the need to plug/unplug any wires. [VERSATILE BLUETOOTH TRANSMITTER / RECEIVER]: Bluetooth-enable virtually ANY of your audio devices at home. Use the Oasis as a transmitter to stream audio from your TV, or computer to a set of Bluetooth headphones. Or use the Oasis as a receiver and allow your home stereo or speakers to play streamed music from your cellphone or laptop. [SUPPORT & WARRANTY]: If you have any questions, please send us an email. We have 10+ online video guides demonstrating how to use the Oasis with currently popular devices and 25+ FAQ in order to better support you. This product is fully-tested with certifications for FCC, CE, MIC, RCM, aptX, BQB and even has a 24 month warranty! Transmitter -&gt; Bluetooth-enable your TV, PC, AV receiver (e.g. Yamaha, Onkyo, Denon), TV Box etc. Stream audio to any Bluetooth headphones / speakers, e.g. Bose, Beats, Sony, Plantronics, Apple AirPods headphones. Receiver -&gt; Bluetooth-enable a wired speaker, soundbar, home theater etc. Receive audio wirelessly from any Bluetooth audio device e.g. PC, mobile phone, Echo, Echo Dot,etc. Equipped with convenient Bypass function - easily switches between your wired connection (e.g. soundbar) and Bluetooth. Uses aptX low latency to eliminate lip sync delay. Compatible with devices with optical, RCA and AUX audio outputs. Can use as a pair to extend range, one Oasis use a BT transmitter, another one as a BT receiver This is a Class 1 Bluetooth transceiver - proven to reach up to 164&#039;. However, your range will depend on your connecting device and other factors (<span class="a-text-bold">see details below Q1</span>) For TV optical output - set audio format to PCM. Dolby / DTS is not supported. Works as EITHER a transmitter or receiver - NOT simultaneously work as a repeater. Multipoint support does not work for all Bluetooth products (<span class="a-text-bold">see details below Q3</span>) For non- aptX LL supported headphones/speakers (e.g. Bose, Beats, Sony headphones), Oasis will work with them using SBC or aptX codec with 70-200ms latency - Lip-sync delay could be noticed by sensitive users. It doesnt support aptX LL when dual link. Not recommend for streaming live music (while playing guitar, keyboard, electronic drums etc.) When using the transmitter the TV internal speakers might not work or become muted. This is TV dependent (<span class="a-text-bold">see details below Q4</span>) When using the digital OPTICAL audio out - please change your TV / DVD audio settings to PCM format as the Oasis doesnt support Dolby / DTS format in optical mode When using the 3.5mm / AUX or the RCA audio out - please be sure to use the TV Red / White audio ports labeled &#034;AUDIO OUT&#034;! Bluetooth version: 4.1 Supported profiles: A2DP, AVRCP Audio codecs: aptX, aptX-LL, SBC Operation range: Class I, up to 164ft / 50M Input voltage / current: DC5.0V / 500mA Operating temperature: -10  ~ 45 Storage temperature: -20  ~ 60 Supported sampling rate in optical mode 48KHz, 16bit Supported audio format in optical mode: PCM / LPCM (Set your TV audio to PCM / LPCM) Product size: 4.49&#034;x 2.95&#034;x 1.18&#034; (1147530MM) Product weight: 0.20lb (90g)