Wireless Bluetooth 4.1 Audio Receiver, Cooliker 2-in-1 Wireless 3.5mm Music Adapter Car Stereo System to Enjoy Calling & Music, Built-in Mic for Hands-free Calling for Home/Mobile Audio Devices

I have had various bluetooth headphones over the last 10 years, including Sony, AKG and Apple. I have now had this for 3 months and it was purchased to replace an ailing Sony SBH-20. Firstly, unlike that device, this does not come supplied with headphones themselves but that is not why I bought it. Devices such as this are brilliant in that they let you use your own choice of headphone - they simply free you from having the headphone cable connected directly to your device. As a bonus, they also allow you to make/receive calls and can be connected to two sources at once (for example, if you are using them for media on one source, this will be interrupted if you are being called on a connected phone). I will say, however, that whilst I can hear the caller perfectly well, they generally struggle to hear me but this is not my main reason for purchasing.I use this primarily for listening to music and it does the job very well. Sound quality easily on a par with the Sony but battery life is better - the warnings for low battery level are also given well in advance (almost an hour in advance).I don't often leave reviews but I have on this occasion as I have had cause to use Cooliker's customer service - I emailed them through the contact details with my order - and it was excellent. I see on some reviews concerns raised on a couple of functional matters - Cooliker would be able to resolve these for you, however, for anyone else with a concern, please note the following:1. The voice prompts on my device were in English, however, I managed to change this somehow to a foreign language. The fix is to switch the device on then push the power button twice in quick succession. This changes the language2. The next one is more curious and not an issue exclusive to this item - it happens with a lot of third party bluetooth devices when working with Apple products (note: not had this issue with Sony or AKG, though). It's the annoying "beep" (the same noise when using the device to control music) that occurs when a new track starts - this starts to happen if you use you Apple device to control the volume of music. The fix is to connect as usual and, during playback, turn the volume down to zero using the buttons on the bluetooth receiver - when it gets to zero you will hear a different tone - then bring the volume back up to required level. The beeping should cease but it will start again if you use the volume on the Apple device.Overall, I recommend this for anyone wishing to have their own choice of "wired" headphones released to the world of bluetooth.

Having gone through 2 x Apple lightening to earbud and 1 x lightening to 3.5mm jack cables in just 18 months, because they just break, I was lookng for a bluetooth option. Even though this is only Bluetooth 4.1 (5.0 being the newer standard), it's performed really well in the week I have been using it. Paired with a set of nice headphones, there is no loss in quality of the sound, and in fact boosts the loudness you can achieve quite a bit. Pairing was simple it just popped up straight away on my phone, I even managed to pair it to my laptop as well, though the instructions to pair it to a second device are quite bad in a Chinese/English translation way.(just switch off bluetooth on your first phone, switch off the bluetooth device, switch back on, holding the MFB button down for 5 seconds to pair and add to your bluetooth on your laptop when it appears, its then paired to both devices).Charging the device takes about 1.5 hrs from empty and the battery life is surprisingly good, Im getting about 10 hours and I use it regularly for 3 hours at a time., so I have only charged it 3 times over the week. It does like to remind you frequently when battery is low, but I have found you have a least an hour to go.10m range when within sight is good, though will chop out if there are walls between it and the phone. Functionality is basic with just off/on, stop/start music, answer call, volume up/down, there is no skip track function (not on an iphone, anyway).Clip it too your jacket, back pack, your jeans pocket and it just stays there and its so light you dont notice it.My inline volume controls on my Headphones work with it as well as my volume controls on my iwatch. If you want Google Map instructions over your headphoneswhile listening to music/podcasts, you need to change change Google Map settings in Navigation to 'play voice over bluetooth'.Overall, really impressed for the price.

I usually don't leave reviews, but I'm so happy with this product that I had to leave one. I use bluetooth receiver/transmitter everywhere. I have one connected to my speakers, in the car and now I'm using this BT receiver for my B&W P7s (older model). I must say it's work amazingly well and the clip on it is perfect. I love the size of it as it's not too small & not too big. I haven't tested the battery life, but I've read that it gives about 10 hrs battery life, which is adequate for me. Sound quality is very important as I didn't want to compromise there, and it hasn't disappointed me so far. Having said that, I've only used this product for few hours. I'll update my review if things to south in next few days/months. So far, I'm pleased. It doesn't have an amazing range though, but enough for me to work with my hands freely and listen to music/watch movies.

The device does a lot right. It’s very small and light. The sound quality is pretty good. However (and I’ve only tested it with an iPhone X - why I bought it - no headphone socket and an IPhone 6s) it does not connect the microphone or remote control from my headphones.This means if I want to swap from listening to music to a call, I have to switch headphones for the ones that came with the phone.The headphone remote is a minor annoyance too.In addition, and only a minor annoyance, there is a beep between every song.Clearly it’s possible to fix these problems. And a real shame they couldn’t.I contacted the seller - who has been pretty responsive and sent me a new device but it behaves the same way exactly. So I think these are inescapable limitations.If you don’t need these functions, I’d recommend the device. If you do, I’d consider it carefully. I’ve not figured out if any competitors solve these problems but would be interested to know.