**Product Specifications:**

**Brand:** GREATWALL

**Shipping:** Self-operated delivery, ready to use upon purchase, JD Logistics, delivery within 4 hours in 8 major warehouses nationwide: Beijing, Shanghai, Guangzhou, Chengdu, Wuhan, Xi'an, Shenyang, Dezhou. Specific delivery times subject to checkout page.

**Features:** Dedicated to sound quality and comfort, endorsed by CCTV, a national brand focusing on quality.

**Company:** GREATWALL Electronics Co., Ltd., located in Tianjin.

**Advertisement:** Advertisements aired on CCTV7, showcasing the product's features and quality.

**Product Name:** GREATWALL Bluetooth Earphones

**Description:** Innovative non-in-ear design, lightweight at 5.5g, comfortable fit, open panoramic sound, Bluetooth 5.4 connectivity.

**Features:**

- Liquid silicone memory ear hooks for comfort.

- Titanium wire for durability.

- DT9.0 directional sound transmission.

- ENC noise reduction for clear calls.

- Long-lasting battery life up to 80 hours.

- AIALGORITHM for enhanced sound quality.

**Design:** Ergonomic design for a secure and comfortable fit, suitable for various activities without discomfort.

**Compatibility:** Suitable for outdoor activities, sports, office use, and relaxation.

**Controls:** Double-tap to switch tracks, single-tap to pause/play, long-press to activate voice assistant.

**Product Parameters:**

- Model: WHADIN 700

- Colors: White, Black, Skin

- Transmission Distance: ≤10m

- Bluetooth Version: V5.4

- Product Dimensions: Charging case (8.2cm x 6.2cm x 2.6cm), Earphones (each 5.1cm x 3.6cm x 1.3cm)

- Package Includes: Earphones x1 pair, Charging case x1, Data cable x1, Packaging box x1

**Note:** The above data is sourced from the manufacturer's laboratory and may vary slightly due to different testing environments.