Compatible with 99% of TVs The Avantree Audikast D4169 is a set consisting of one (1) Bluetooth 5.0 in-ear headphones and one (1) Bluetooth over-ear headphones with a transmitter. The wireless transmitter is the Audikast Plus Bluetooth Class 1 and the package includes Optical, AUX, and RCA input cables. It's compatible with any TV that has a working Audio Output jack. It is the perfect Bluetooth set for non-smart and smart TV brands and arguably better than the Bluetooth built into your TV. The Audikast transmitter works with TV brands like Vizio, Samsung, LG, Sony, TCL, Phillips, Hisense, Toshiba, Sharp, and more. Two Headphones, at the Same Time The Dual Link feature allows audio to be played through both pairs of wireless headphones simultaneously, with perfect audio. However, either headphone can function independently in case only one person is watching TV. Your partner or friend can join you at any time without any audio interruption for you. Simply have them press the headphone’s power button when ready to watch, and it will automatically connect – every time. No Lip-sync Delay Certified Qualcomm aptX Low Latency, the Avantree D4169 Audikast Plus transmitter provides <40 ms audio latency. Typical solutions in the market can have audio latency over 100MS or more which causes the notorious "Bluetooth audio lag" experience where the images on the TV and the audio are off. Its low latency design delivers perfectly synchronized visual & audio no matter what you're watching. Personalized Audio Control We all hear differently, and the volume level that works for you might not work for your friend or partner. The D4169 set solves this issue by allowing you to adjust each headphone's volume independently, letting you avoid remote wrestling or clashes over the volume level. Those individuals experiencing hearing can now increase their volume levels without affecting their partners' TV experience. Hassle-free Pairing Both headphones and Bluetooth transmitter are factory pre-paired making the connection procedure painless. No more making sure the device is in Bluetooth mode or setting both device and headphones to find each other. Just power on the transmitter and headphones, and they will automatically connect - every time. If one becomes disconnected, simply power it on or off or press the transmitter’s device pairing buttons. Use with Other Devices The two headphones and the Audikast Plus Bluetooth transmitter that make up the Avantree D4169 kit can be used independently. Use both headphones to hear your favorite podcast, music, or sporting event when paired with your cell phone, tablet, laptop, or computer. While the Class 1 Bluetooth 5.0 transmitter can send audio through an external speaker (like a soundbar or AV receiver + speakers) of another brand. Powerful, Lightweight, & Comfortable The ergonomically designed Avantree D4169’s in-ear and over-ear headphones provide all-day comfort. The over-ear headphone delivers 40 hours of playtime, and the in-ear headphone gives 20 hours – more than enough for a full day of binge-watching. Since the kit has two types of headphones, you (or friend/family member) have the freedom to swap or change styles based on content or how you feel. Specifications for Headphones: Model No.: BTHS-AS9S; BTHS-NB16; BT version: V5.0Supported profiles: HSP, HFP, A2DP, AVRCP; Supported audio codecs: FastStream, SBCOperating range: Class 2, up to 30 ft/10mOperating time: up to 40 hours play time and 20 days standby time (AS9S), up to 20 hours play time (NB16)Frequency response: 20Hz-20KHz Specifications for Transmitter: Model No.: BTTC-418-P; BT version: V5.0Supported profiles: A2DP, HFP, AVRCPSupported audio codecs: aptX LL, FastStream, aptX, SBCOperating range: Class 1, up to 100ft/30m What's in the box: Headphone (BTHS-AS9S) X 1Earbuds (BTHS-NB16) X 1Transmitter (BTTC-418-P) X 1Micro USB power cable x 2Optical audio cable X 13.5mm audio cable X 13.5mm to RCA audio cable X 1 HT41899 D4169 HT41866 Buying Options Buying Options Buying Options Customer Reviews 4.5 out of 5 stars 4,487 4.2 out of 5 stars 808 4.3 out of 5 stars 1,444 Bluetooth Version 5.0 5.0 5.0 # of Headphones Included 2 2 2 Headphone Form Factor Over-ear Over & In-Ear Neckband In-Ear Neckband TV Audio Ports Supported Optical, 3.5mm, RCA Optical, 3.5mm, RCA Optical, 3.5mm, RCA Audio delay (Low latency) 40ms 40ms 40ms Headphone Work with PC or Cell Phone ✓ ✓ ✓ Playtime up to 40h up to 40h or 20h up to 20h Headphone Stand Included Yes No Yes