This depends on your source device, but most Bluetooth Sources support up to 7 devices (Bluetooth Adapters only support one at a time). Creating a happy medium between our lowest entry (EP400, 10 hours) and highest (EP650, 15 hours) the EP636 is able to play for 12-13 hours. You might be wondering where the extra power is going, stopping them from reaching the high teens. Well, it’s all in the mic!

If you are concerned about trying Bone Conduction technology, read our guide to the safety of the technology here and learn about any and all side effects. Are There Bone Conduction Headphones Side Effects? Overall, only those with pre-existing conditions or issues using ordinary headphones will have any negative experience from Bone Conduction. What's so good about Bone Conduction? The EP735 Bluetooth headphones use the older 40mm driver units and so lose a tiny but of depth and range compared to the EP650’s. This is mostly to facilitate the extra noise cancellation functions without absolutely ruining the battery life by having both. The quality bridges the gap between the EP640 and EP650, with the slightly lower power speakers actually still sounding great because of the noise reduction.

August EP400 Bone Conduction Headphones

Despite a different design from conventional headphones, the EP400 offers incredible sound quality. The Bluetooth 5.3 connection allows perfect stability between your audio source and the headset and a fast rate of wireless communication. These waterproof bone conduction headphones are rated IP grade IP68. This makes them perfect for outdoor use. Waterproof headphones allow exercise or commuting in the rain without any fear.

A slight upgrade to the EP640, the EP650 use a Bluetooth 4.2 chipset enabling faster data transfer and, crucially, more data for bass. Once again, the wireless transmission of 4.2 is more than capable of preserving streamed or online audio, with only high-quality raw audio files needing compression to travel wirelessly. The EP650 are by far UK Manufacturer August’s best-selling headphones, and in some ways it’s easy to see why. But what do they really do differently, and are they truly best? Connectivity The EP400’s are tiny and light, but also feature-heavy. This means the battery life ends up reaching 10-12 hours rather than into the high teens. They do recharge in under 2 hours, however, minimising downtime that way.Work out while listening to music, commute in safety, and have fully private listening. Choose these comfortable and practical headphones for your exercise sessions at home, in the gym or outdoors to see how Bone Conduction minimises weight in favour of your performance. Runners, cyclists and hikers will appreciate the open ear system. This pair of headphones have the most dynamic battery life on the list. Due to ANC (Active Noise Cancelling) having a dedicated On / Off button, the headphones can last up to 18 hours or only 10 depending on ANC usage. The recharge time is faster than the EP640 and a little slower than the EP650, at 3 hours maximum. Throwing a curveball at the “over-ear” gang we’ve got going so far is the EP400. The EP400 headphones aren’t over-ear, but simply rest on the sides of your head and provide private audio via bone conduction. Connectivity This technology allows you to enjoy wireless media in complete sync. This makes the EP650s perfect for those nights where you want to enjoy your movie or gaming session to the fullest, but don’t want to wake the entire house up! Application