Sennheiser’s CES announcements include the first Bluetooth models in the company’s HD 4 series, and a new in-ear Bluetooth Momentum model.

The Momentum In-Ear Wireless is a new neckband headphone design due for Australian release in March. It uses Bluetooth 4.1 transmission including codec support for AAC (Apple devices) and apt-X (for Android devices which support it).

Sennheiser quotes 10-hour battery life for the design, which includes an integrated three-button remote and high-quality microphone incorporated into the neckband allowing control and call making on the move, and stainless steel in-ear “sound tunnels” to support sound delivery, with mirrored chrome external finish and impact-resistant polycarbonate. There is NFC one-touch Bluetooth pairing with smart devices, and voice prompts for pairing and battery life warnings. Usefully it also supports USB audio when USB charging.

No Australian price is yet available, but in Europe, where they are already on sale, the price is set at 199 euros, which might indicate Australian pricing at $399.

The HD 4.50BTNC and HD 4.40BT are the two new closed-back around-ear Bluetooth headphones described by Ivan Kuan, Head of Portfolio Management Lifestyle at Sennheiser, as “designed for always-on, always-connected customers for whom the enjoyment of media and music can be part of every day and every hour,” though after their quoted 25 hours battery life (19 hours with noise-cancelling) you’ll need to attach the provided cable for non-battery operation until you recharge them. The HD 4.50BTNC comes with a protective case, while the HD 4.40BT can be stored in the supplied soft pouch.

Both models will again be available in Australia in March, price not yet announced, but on sale in Europe at 149 euros for the HD 4.40 BT and 199 euros for the HD 4.50 BTNC, indicating possible Australian pricing around $299 and $399 respectively.