ESR

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Overview

ESR is a tech accessories brand specializing in mobile device protection, wireless charging, and tracking products, particularly for Apple devices. It holds a leading position in MagSafe-compatible accessories, with over 100 million users worldwide and more than 490 patents. The company rebranded from ESR Gear to ESR Tech in 2025 to emphasize innovation in everyday tech solutions.

History

ESR was founded in 2009 as Electronics Silk Road with a focus on electronics accessories to enhance digital life. It pioneered MagSafe innovations like the HaloLock ecosystem and CryoBoost technology starting in 2020, inspired by Apple's technology. In 2023, it expanded into the Apple ecosystem with the Geo series using Find My tracking. The brand transitioned from ESR Gear to ESR Tech in 2025, launching an upgraded digital presence.

Product Lines

Product Line	Positioning	Price Range
HaloLock MagSafe Charging	MagSafe-compatible wireless chargers	$20 - $60
Protective Phone Cases	Durable cases for iPhone and Android	$15 - $40
Geo Tracking Accessories	Find My-enabled everyday carry items	$25 - $50
Screen Protectors	Tempered glass for mobile devices	$10 - $25
Power Banks	Portable chargers with fast charging	$30 - $70

Manufacturing

Products are manufactured in China, with the business address at 5F-7F, Block 10B, Wutong Island, Hang Kong Road, Xixiang, Bao’an District, Shenzhen. Operations are handled by Electronic Silk Road (Shenzhen) Tech Co., Ltd., suggesting in-house production capabilities focused on innovative design and testing.

Notable Products

HaloLock Wireless Chargers - MagSafe-compatible chargers with CryoBoost cooling technology for efficient charging.
Geo Tracker Series - Accessories integrating Apple's Find My network for item tracking.
Rebound Magnetic Cases - Protective iPhone cases with MagSafe compatibility and enhanced drop protection.
CryoBoost Power Banks - Portable batteries featuring cooling technology for sustained fast charging.
HaloLock Kickstand Chargers - 3-in-1 chargers with stand functionality for multiple devices.

Reputation

ESR is recognized by users for affordable, functional MagSafe accessories and innovative features like HaloLock and Geo tracking. Professionals note its strong patent portfolio and market leadership in wireless charging. Some criticisms arise from its non-accredited BBB status and use of a U.S. registered agent without physical presence there.

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